diff --git a/moz.configure b/moz.configure
index 87882d0d31d5..f9682e19c70c 100755
--- a/moz.configure
+++ b/moz.configure
@@ -416,7 +416,6 @@ def want_wine(target, host):
 wine = check_prog(
     "WINE",
     ["wine64", "wine"],
-    allow_missing=True,
     when=want_wine,
     bootstrap="wine/bin",
 )