diff --git a/git-codereview/api.go b/git-codereview/api.go
index 6ab65b1..0e8bc13 100644
--- a/git-codereview/api.go
+++ b/git-codereview/api.go
@@ -43,7 +43,7 @@
 	// Gerrit must be set as Git's origin remote.
 	origin := trim(cmdOutput("git", "config", "remote.origin.url"))
 
-	if strings.Contains(origin, "//github.com/") {
+	if strings.Contains(origin, "github.com") {
 		dief("git origin must be a Gerrit host, not GitHub: %s", origin)
 	}