diff --git a/src/definitions.h b/src/definitions.h
index 0ec0bd9..73bfd0f 100644
--- a/src/definitions.h
+++ b/src/definitions.h
@@ -12,6 +12,7 @@
 #define SPINWALK_VERSION STRINGIFY(VERSION_MAJOR) "." STRINGIFY(VERSION_MINOR) "." STRINGIFY(VERSION_PATCH)
 
 #define ERR_MSG  "\033[1;31mError:\033[0m "
+#define WARN_MSG "\033[1;33mWarning:\033[0m "
 
 // #define MINI_CASE_SENSITIVE