diff --git a/pkg/node/message.go b/pkg/node/message.go
index 6f343df..02483cb 100644
--- a/pkg/node/message.go
+++ b/pkg/node/message.go
@@ -21,8 +21,8 @@ var SupportedProtocolVersions = []string{"1.0"}
 
 // IsProtocolVersionSupported checks if a given version is supported.
 func IsProtocolVersionSupported(version string) bool {
-	for _, v := range SupportedProtocolVersions {
-		if v == version {
+	for _, supported := range SupportedProtocolVersions {
+		if supported == version {
 			return true
 		}
 	}