diff --git a/src/stamp/modeling/data.py b/src/stamp/modeling/data.py
index c3696c0f..c070c24e 100755
--- a/src/stamp/modeling/data.py
+++ b/src/stamp/modeling/data.py
@@ -435,7 +435,7 @@ def detect_feature_type(feature_dir: Path) -> str:
     feature_types = set()
     files_checked = 0
 
-    for file in feature_dir.glob("*.h5"):
+    for file in feature_dir.rglob("*.h5"):
         files_checked += 1
         with h5py.File(file, "r") as h5:
             feat_type = h5.attrs.get("feat_type")