diff --git a/Makefile b/Makefile
index 831b36a6b0a1..15e90be5c027 100644
--- a/Makefile
+++ b/Makefile
@@ -606,7 +606,7 @@ ifdef CONFIG_CC_STACKPROTECTOR_REGULAR
   stackp-flag := -fstack-protector
   ifeq ($(call cc-option, $(stackp-flag)),)
     $(warning Cannot use CONFIG_CC_STACKPROTECTOR: \
-	      -fstack-protector not supported by compiler))
+             -fstack-protector not supported by compiler)
   endif
 else ifdef CONFIG_CC_STACKPROTECTOR_STRONG
   stackp-flag := -fstack-protector-strong