diff --git a/pkgs/development/compilers/vala/setup-hook.sh b/pkgs/development/compilers/vala/setup-hook.sh
index 53976e5cd0db..5e7bc352718f 100644
--- a/pkgs/development/compilers/vala/setup-hook.sh
+++ b/pkgs/development/compilers/vala/setup-hook.sh
@@ -7,15 +7,6 @@ make_vala_find_vapi_files() {
 
 addEnvHooks "$targetOffset" make_vala_find_vapi_files
 
-disable_incompabile_pointer_conversion_warning() {
-    # Work around incompatible function pointer conversion errors with clang 16
-    # by setting ``-Wno-incompatible-function-pointer-types` in an env hook.
-    # See https://gitlab.gnome.org/GNOME/vala/-/issues/1413.
-    NIX_CFLAGS_COMPILE+=" -Wno-incompatible-function-pointer-types"
-}
-
-addEnvHooks "$hostOffset" disable_incompabile_pointer_conversion_warning
-
 _multioutMoveVapiDirs() {
   moveToOutput share/vala/vapi "${!outputDev}"
   moveToOutput share/vala-@apiVersion@/vapi "${!outputDev}"