diff --git a/meson.build b/meson.build
index f4935e76..494f5c67 100644
--- a/meson.build
+++ b/meson.build
@@ -233,6 +233,7 @@ if get_option('debug')
     '-Wuninitialized',
     '-Wunused-but-set-parameter',
     '-Wunused-parameter',
+    '-Wunused-result',
     '-Wwrite-strings',
   ]
   add_project_arguments(cc.get_supported_arguments(extra_cflags), language : 'c')