diff --git a/build/jam/ArchitectureRules b/build/jam/ArchitectureRules
index 1181446fc7..216ca71fb3 100644
--- a/build/jam/ArchitectureRules
+++ b/build/jam/ArchitectureRules
@@ -627,6 +627,7 @@ rule ArchitectureSetupWarnings architecture
 	EnableWerror src add-ons translators tiff ;
 #	EnableWerror src add-ons translators wonderbrush ;
 	EnableWerror src add-ons print ;
+	EnableWerror src bin multiuser ;
 	EnableWerror src bin package ;
 	EnableWerror src bin package_repo ;
 	EnableWerror src bin pkgman ;