diff --git a/cmd/gvproxy/main.go b/cmd/gvproxy/main.go
index 09d7931d..70a4e3e1 100644
--- a/cmd/gvproxy/main.go
+++ b/cmd/gvproxy/main.go
@@ -182,7 +182,7 @@ func main() {
 	}
 
 	if c := len(forwardSocket); c != len(forwardDest) || c != len(forwardUser) || c != len(forwardIdentify) {
-		exitWithError(errors.New("-forward-sock, --forward-dest, --forward-user, and --forward-identity must all be specified together, " +
+		exitWithError(errors.New("--forward-sock, --forward-dest, --forward-user, and --forward-identity must all be specified together, " +
 			"the same number of times, or not at all"))
 	}