diff --git a/quasar.cabal b/quasar.cabal
index 497cfd30f879506e865c8cca8fec9cebb97bdf18..a8f079f85255cc571b9306750e1bd5a5435807a4 100644
--- a/quasar.cabal
+++ b/quasar.cabal
@@ -54,6 +54,7 @@ common shared-properties
     -Wno-missing-import-lists
     -Wno-unsafe
     -Werror=incomplete-patterns
+    -Werror=missing-fields
     -Werror=missing-methods
 
 common shared-executable-properties