diff --git a/cmd/root.go b/cmd/root.go
index 38f06df2..9551cf45 100644
--- a/cmd/root.go
+++ b/cmd/root.go
@@ -32,7 +32,7 @@ func isHelpOrVersion(args []string) bool {
 }
 
 func isCompletionRequested(args []string) bool {
-	return args[1] == "completion"
+	return len(args) >= 2 && args[1] == "completion"
 }
 
 // isCommandRequested checks if any command is requested.