diff --git a/testsuite/gsk/meson.build b/testsuite/gsk/meson.build
index 5eb636f1cf..00e7a05976 100644
--- a/testsuite/gsk/meson.build
+++ b/testsuite/gsk/meson.build
@@ -570,8 +570,8 @@ internal_tests = [
   [ 'boundingbox'],
   [ 'curve', [ ], [ 'flaky' ]],
   [ 'curve-special-cases' ],
-  [ 'diff' ],
   [ 'half-float' ],
+  [ 'not-diff' ],
   [ 'misc'],
   [ 'path-private' ],
   [ 'rounded-rect'],
diff --git a/testsuite/gsk/diff.c b/testsuite/gsk/not-diff.c
similarity index 100%
rename from testsuite/gsk/diff.c
rename to testsuite/gsk/not-diff.c