diff --git a/spectre-meltdown-checker.sh b/spectre-meltdown-checker.sh
index 50ad972..d84f05e 100755
--- a/spectre-meltdown-checker.sh
+++ b/spectre-meltdown-checker.sh
@@ -122,7 +122,7 @@ _echo_nol()
 
 _warn()
 {
-	_echo 0 "\033[31m${@}\033[0m"
+	_echo 0 "\033[31m${@}\033[0m" >&2
 }
 
 _info()