diff --git a/common/proxy.go b/common/proxy.go
index a76abdaf0c..cac04f7b84 100644
--- a/common/proxy.go
+++ b/common/proxy.go
@@ -45,7 +45,7 @@ var (
 		"Access-Control-Request-Headers": true,
 		"Access-Control-Request-Method":  true,
 		"Sec-Ms-Gec":                     true,
-		"Sec-Ms-Gec-Version:":            true,
+		"Sec-Ms-Gec-Version":             true,
 		"X-Client-Data":                  true,
 		"X-Ms-Client-Request-Id":         true,
 		"X-Ms-Useragent":                 true,