diff --git a/test/TEST-21-DFUZZER/meson.build b/test/TEST-21-DFUZZER/meson.build
index 03cae4f7da..e107b85561 100644
--- a/test/TEST-21-DFUZZER/meson.build
+++ b/test/TEST-21-DFUZZER/meson.build
@@ -1,6 +1,6 @@
 # SPDX-License-Identifier: LGPL-2.1-or-later
 
-test_params = test_params + {
+test_params +=  {
         'timeout' : 3600,
-        'priority': -50,
+        'priority' : -50,
 }