diff --git a/meson.build b/meson.build
index f6639117..11c26d63 100644
--- a/meson.build
+++ b/meson.build
@@ -18,6 +18,7 @@ add_project_arguments(
     '-Werror=maybe-uninitialized',
     '-Werror=missing-field-initializers',
     '-Werror=incompatible-pointer-types',
+    '-Werror=int-conversion',
   ],
   language: 'c'
 )