diff --git a/scripts/vim-patch.sh b/scripts/vim-patch.sh
index fb5b5a6268..472c4c6c58 100755
--- a/scripts/vim-patch.sh
+++ b/scripts/vim-patch.sh
@@ -942,6 +942,12 @@ is_na_patch() {
           test "$HUNK_NUM_FINAL" -ne 0 && return 1
         fi
         ;;
+      src/testdir/Makefile)
+        HUNKS=$(git -C "${VIM_SOURCE_DIR}" diff-tree --no-commit-id -r -b -U0 \
+          '-IREDIR_TEST_TO_NULL = ' \
+          "$patch" -- "${file}")
+        test -n "$HUNKS" && return 1
+        ;;
       src/testdir/Make*.mak)
         HUNKS=$(git -C "${VIM_SOURCE_DIR}" diff-tree --no-commit-id -r -b -U0 \
           '-I\stest8[67]\.out \\$' \