diff --git a/.github/workflows/Test.yml b/.github/workflows/Test.yml
index 1bf06f2a..05632cdc 100644
--- a/.github/workflows/Test.yml
+++ b/.github/workflows/Test.yml
@@ -18,7 +18,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        version: ['1.10', '1.11', 'nightly']
+        version: ['1.10', '1.11', '1.12-nightly', 'nightly']
         os: [ubuntu-latest, macOS-latest, windows-latest]
         arch: [x64]
         llvm_args: ['']
diff --git a/src/jlgen.jl b/src/jlgen.jl
index 6dd691e6..2dc6486c 100644
--- a/src/jlgen.jl
+++ b/src/jlgen.jl
@@ -624,7 +624,7 @@ function compile_method_instance(@nospecialize(job::CompilerJob))
     if VERSION < v"1.12.0-DEV.1667"
         cgparams = (; lookup = Base.unsafe_convert(Ptr{Nothing}, lookup_cb), cgparams... )
     end
-    if VERSION > v"1.13.0-DEV.285"
+    if v"1.12.0-DEV.2126" <= VERSION < v"1.13-" || VERSION >= v"1.13.0-DEV.285"
         cgparams = (; force_emit_all = true , cgparams...)
     end
     params = Base.CodegenParams(; cgparams...)