diff --git a/Makefile.system b/Makefile.system
index fb8e7ea41..20d4f6492 100644
--- a/Makefile.system
+++ b/Makefile.system
@@ -65,6 +65,7 @@ endif
 
 ifdef TARGET
 GETARCH_FLAGS := -DFORCE_$(TARGET)
+GETARCH_FLAGS += -DUSER_TARGET
 endif
 
 # Force fallbacks for 32bit