diff --git a/Makefile b/Makefile
index 13a0ce5..bef1fdf 100644
--- a/Makefile
+++ b/Makefile
@@ -84,7 +84,7 @@ gate: gate-traefik
 
 
 .PHONY: core
-core: config $CORE_CTs)
+core: config $(CORE_CTs)
 
 
 .PHONY: minimal