diff --git a/firmware/Makefile b/firmware/Makefile
index b94fb2a22e..48b6ce5b07 100644
--- a/firmware/Makefile
+++ b/firmware/Makefile
@@ -8,7 +8,7 @@ RULESPATH = $(CHIBIOS)/os/common/startup/ARMCMx/compilers/GCC/mk
 RULESFILE = $(RULESPATH)/rules.mk
 
 ifneq ("$(wildcard $(../.git))","")
-$(error ../.git not found. We expect source code to be cloned not downloaded as zip file.")
+$(error "../.git not found. We expect source code to be cloned not downloaded as zip file.")
 endif
 
 include rusefi_rules.mk