diff --git a/scripts/openclaw-performance-source-summary.mjs b/scripts/openclaw-performance-source-summary.mjs
index 5cb772fb1d3..3e505ffad06 100644
--- a/scripts/openclaw-performance-source-summary.mjs
+++ b/scripts/openclaw-performance-source-summary.mjs
@@ -8,7 +8,7 @@ import { pathToFileURL } from "node:url";
 
 function readOptionValue(argv, index, optionName) {
   const value = argv[index + 1];
-  if (!value || value.startsWith("--")) {
+  if (!value || value.startsWith("-")) {
     throw new Error(`${optionName} requires a value`);
   }
   return value;
diff --git a/test/scripts/openclaw-performance-source-summary.test.ts b/test/scripts/openclaw-performance-source-summary.test.ts
index c8de48d5df4..4e431dc2ea4 100644
--- a/test/scripts/openclaw-performance-source-summary.test.ts
+++ b/test/scripts/openclaw-performance-source-summary.test.ts
@@ -134,6 +134,7 @@ describe("parseArgs", () => {
     for (const flag of ["--source-dir", "--baseline-source-dir", "--output"]) {
       expect(() => parseArgs([flag])).toThrow(`${flag} requires a value`);
       expect(() => parseArgs([flag, ""])).toThrow(`${flag} requires a value`);
+      expect(() => parseArgs([flag, "-h"])).toThrow(`${flag} requires a value`);
       expect(() => parseArgs([flag, "--source-dir", "reports/current"])).toThrow(
         `${flag} requires a value`,
       );