diff --git a/tests/meson.build b/tests/meson.build
index 8101587..f5baef2 100644
--- a/tests/meson.build
+++ b/tests/meson.build
@@ -1,6 +1,6 @@
 jsonc_daccord = dependency(
     'jsoncdac',
-    default_options: ['default_library=static'],
+    default_options: ['default_library=static', 'warning_level=2'],
 )
 
 test_sources = files('base64_test.c', 'test-utils.c')