diff --git a/testsuite/gtk/meson.build b/testsuite/gtk/meson.build
index d725d992f6..fb6c387fbf 100644
--- a/testsuite/gtk/meson.build
+++ b/testsuite/gtk/meson.build
@@ -30,7 +30,7 @@ tests = [
   ['expression'],
   ['filter'],
   ['filterlistmodel'],
-  ['filterlistmodel-exhaustive'],
+  ['filterlistmodel-exhaustive', [], [], [], ['slow']],
   ['flattenlistmodel'],
   ['floating'],
   ['flowbox'],