diff --git a/openlane/Makefile b/openlane/Makefile
index 6e4afc1..a88a320 100644
--- a/openlane/Makefile
+++ b/openlane/Makefile
@@ -91,7 +91,7 @@
 
 .PHONY: check-openlane-env
 check-openlane-env:
-	ifeq ($(OPENLANE_ROOT),)
+ifeq ($(OPENLANE_ROOT),)
 	@echo "Please export OPENLANE_ROOT"
 	@exit 1
 endif