diff --git a/expat/apply-clang-tidy.sh b/expat/apply-clang-tidy.sh
index 17015f6c..3d937df9 100755
--- a/expat/apply-clang-tidy.sh
+++ b/expat/apply-clang-tidy.sh
@@ -44,9 +44,6 @@ checks_to_disable=(
 
     # Used only in xmlwf, manually checked to be good enough for now
     clang-analyzer-security.insecureAPI.strcpy
-
-    # Disabling because buggy, see https://github.com/llvm/llvm-project/issues/40656
-    clang-analyzer-valist.Uninitialized
 )
 checks_to_disable_flat="${checks_to_disable[*]}"  # i.e. flat string separated by spaces