diff --git a/subworkflows/sanger/tiled_segmentation/main.nf b/subworkflows/sanger/tiled_segmentation/main.nf
index 975ee9b8c99..0f1f7538c42 100644
--- a/subworkflows/sanger/tiled_segmentation/main.nf
+++ b/subworkflows/sanger/tiled_segmentation/main.nf
@@ -13,14 +13,13 @@ workflow TILED_SEGMENTATION {
 
     main:
     ch_versions = Channel.empty()
-    ch_images = Channel.of(images)
-    GENERATE_TILE_COORDS(ch_images)
+    GENERATE_TILE_COORDS(images)
     ch_versions = ch_versions.mix(GENERATE_TILE_COORDS.out.versions.first())
 
     images_tiles = GENERATE_TILE_COORDS.out.tile_coords.splitCsv(header:true, sep:",").map{ meta, coords ->
         [meta, coords.X_MIN, coords.Y_MIN, coords.X_MAX, coords.Y_MAX]
     }
-    tiles_and_images = images_tiles.combine(ch_images, by:0)
+    tiles_and_images = images_tiles.combine(images, by:0)
     if (method == "CELLPOSE") {
         CELLPOSE(tiles_and_images.combine(channel.from(params.cell_diameters)))
         wkts = CELLPOSE.out.wkts.groupTuple(by:0)
@@ -44,6 +43,6 @@ workflow TILED_SEGMENTATION {
     ch_versions = ch_versions.mix(MERGEOUTLINES.out.versions.first())
 
     emit:
-    wkt         = MERGEOUTLINES.out.multipoly_geojsons   // channel: [ val(meta), [ geojson ] ]
+    geojson         = MERGEOUTLINES.out.multipoly_geojsons   // channel: [ val(meta), [ geojson ] ]
     versions    = ch_versions                     // channel: [ versions.yml ]
 }
\ No newline at end of file
diff --git a/subworkflows/sanger/tiled_segmentation/tests/main.nf.test b/subworkflows/sanger/tiled_segmentation/tests/main.nf.test
index e986f341373..71e58bc4c5e 100644
--- a/subworkflows/sanger/tiled_segmentation/tests/main.nf.test
+++ b/subworkflows/sanger/tiled_segmentation/tests/main.nf.test
@@ -17,10 +17,10 @@ nextflow_workflow {
             }
             workflow {
                 """
-                input[0] = [
+                input[0] = Channel.of([
                     [ id:'test'], // meta map
                     file(params.modules_testdata_base_path + 'imaging/segmentation/nuclear_image.tif', checkIfExists: true),
-                ]
+                ])
                 input[1] = 'CELLPOSE'
                 """
             }
@@ -40,10 +40,10 @@ nextflow_workflow {
         when {
             workflow {
                 """
-                input[0] = [
+                input[0] = Channel.of([
                     [ id:'test'], // meta map
                     file(params.modules_testdata_base_path + 'imaging/segmentation/nuclear_image.tif', checkIfExists: true),
-                ]
+                ])
                 input[1] = 'STARDIST'
                 """
             }
@@ -63,10 +63,10 @@ nextflow_workflow {
         when {
             workflow {
                 """
-                input[0] = [
+                input[0] = Channel.of([
                     [ id:'test'], // meta map
                     file(params.modules_testdata_base_path + 'imaging/segmentation/nuclear_image.tif', checkIfExists: true),
-                ]
+                ])
                 input[1] = 'INSTANSEG'
                 """
             }
@@ -86,10 +86,10 @@ nextflow_workflow {
         when {
             workflow {
                 """
-                input[0] = [
+                input[0] = Channel.of([
                     [ id:'test'], // meta map
                     file(params.modules_testdata_base_path + 'imaging/segmentation/nuclear_image.tif', checkIfExists: true),
-                ]
+                ])
                 input[1] = 'DEEPCELL'
                 """
             }
diff --git a/subworkflows/sanger/tiled_segmentation/tests/main.nf.test.snap b/subworkflows/sanger/tiled_segmentation/tests/main.nf.test.snap
index 6cc214da33e..7886911256e 100644
--- a/subworkflows/sanger/tiled_segmentation/tests/main.nf.test.snap
+++ b/subworkflows/sanger/tiled_segmentation/tests/main.nf.test.snap
@@ -15,18 +15,18 @@
                     "versions.yml:md5,4ca6951145ae8e8a22f95081060586e9",
                     "versions.yml:md5,74ae9680e8565f16244a79acbe2ef1e4"
                 ],
-                "versions": [
-                    "versions.yml:md5,1d6e2b331dc05b3496a477c7e8adbeee",
-                    "versions.yml:md5,4ca6951145ae8e8a22f95081060586e9",
-                    "versions.yml:md5,74ae9680e8565f16244a79acbe2ef1e4"
-                ],
-                "wkt": [
+                "geojson": [
                     [
                         {
                             "id": "test"
                         },
                         "test_merged.geojson:md5,9fe55ab05e13024faee6daa2ddcf8e6d"
                     ]
+                ],
+                "versions": [
+                    "versions.yml:md5,1d6e2b331dc05b3496a477c7e8adbeee",
+                    "versions.yml:md5,4ca6951145ae8e8a22f95081060586e9",
+                    "versions.yml:md5,74ae9680e8565f16244a79acbe2ef1e4"
                 ]
             }
         ],
@@ -34,7 +34,7 @@
             "nf-test": "0.9.2",
             "nextflow": "24.04.4"
         },
-        "timestamp": "2025-03-18T22:25:28.496236908"
+        "timestamp": "2025-03-19T09:25:50.356779643"
     },
     "nuclear - tif - cellpose": {
         "content": [
@@ -52,18 +52,18 @@
                     "versions.yml:md5,4ca6951145ae8e8a22f95081060586e9",
                     "versions.yml:md5,7e24ffbd0425ebf6bf537e55ac367001"
                 ],
-                "versions": [
-                    "versions.yml:md5,1d6e2b331dc05b3496a477c7e8adbeee",
-                    "versions.yml:md5,4ca6951145ae8e8a22f95081060586e9",
-                    "versions.yml:md5,7e24ffbd0425ebf6bf537e55ac367001"
-                ],
-                "wkt": [
+                "geojson": [
                     [
                         {
                             "id": "test"
                         },
                         "test_merged.geojson:md5,0d1072acebefc19c48bbcdb17ac57d5f"
                     ]
+                ],
+                "versions": [
+                    "versions.yml:md5,1d6e2b331dc05b3496a477c7e8adbeee",
+                    "versions.yml:md5,4ca6951145ae8e8a22f95081060586e9",
+                    "versions.yml:md5,7e24ffbd0425ebf6bf537e55ac367001"
                 ]
             }
         ],
@@ -71,7 +71,7 @@
             "nf-test": "0.9.2",
             "nextflow": "24.04.4"
         },
-        "timestamp": "2025-03-18T22:24:29.505111421"
+        "timestamp": "2025-03-19T09:24:50.844367069"
     },
     "nuclear - tif - deepcell": {
         "content": [
@@ -89,18 +89,18 @@
                     "versions.yml:md5,4ca6951145ae8e8a22f95081060586e9",
                     "versions.yml:md5,e693a7e9c66cd7a37d9829cae2fc3648"
                 ],
-                "versions": [
-                    "versions.yml:md5,1d6e2b331dc05b3496a477c7e8adbeee",
-                    "versions.yml:md5,4ca6951145ae8e8a22f95081060586e9",
-                    "versions.yml:md5,e693a7e9c66cd7a37d9829cae2fc3648"
-                ],
-                "wkt": [
+                "geojson": [
                     [
                         {
                             "id": "test"
                         },
                         "test_merged.geojson:md5,a3f7237d662627863a30cff6128b989c"
                     ]
+                ],
+                "versions": [
+                    "versions.yml:md5,1d6e2b331dc05b3496a477c7e8adbeee",
+                    "versions.yml:md5,4ca6951145ae8e8a22f95081060586e9",
+                    "versions.yml:md5,e693a7e9c66cd7a37d9829cae2fc3648"
                 ]
             }
         ],
@@ -108,7 +108,7 @@
             "nf-test": "0.9.2",
             "nextflow": "24.04.4"
         },
-        "timestamp": "2025-03-18T22:26:52.113552786"
+        "timestamp": "2025-03-19T09:27:14.541410552"
     },
     "nuclear - tif - stardist": {
         "content": [
@@ -126,18 +126,18 @@
                     "versions.yml:md5,4ca6951145ae8e8a22f95081060586e9",
                     "versions.yml:md5,e3945a4be7e4f9daa0ab9c717a9cce10"
                 ],
-                "versions": [
-                    "versions.yml:md5,1d6e2b331dc05b3496a477c7e8adbeee",
-                    "versions.yml:md5,4ca6951145ae8e8a22f95081060586e9",
-                    "versions.yml:md5,e3945a4be7e4f9daa0ab9c717a9cce10"
-                ],
-                "wkt": [
+                "geojson": [
                     [
                         {
                             "id": "test"
                         },
                         "test_merged.geojson:md5,590cf1b456fbae16631254f0f79121fc"
                     ]
+                ],
+                "versions": [
+                    "versions.yml:md5,1d6e2b331dc05b3496a477c7e8adbeee",
+                    "versions.yml:md5,4ca6951145ae8e8a22f95081060586e9",
+                    "versions.yml:md5,e3945a4be7e4f9daa0ab9c717a9cce10"
                 ]
             }
         ],
@@ -145,6 +145,6 @@
             "nf-test": "0.9.2",
             "nextflow": "24.04.4"
         },
-        "timestamp": "2025-03-18T22:24:58.557258383"
+        "timestamp": "2025-03-19T09:25:19.772074638"
     }
 }
\ No newline at end of file