diff --git a/lib/FunctionModuleTemplatePlugin.js b/lib/FunctionModuleTemplatePlugin.js
index cf2e1b0ea..3402d997a 100644
--- a/lib/FunctionModuleTemplatePlugin.js
+++ b/lib/FunctionModuleTemplatePlugin.js
@@ -41,9 +41,11 @@ class FunctionModuleTemplatePlugin {
 					const req = module.readableIdentifier(
 						moduleTemplate.runtimeTemplate.requestShortener
 					);
-					source.add("/*!****" + req.replace(/./g, "*") + "****!*\\\n");
-					source.add("  !*** " + req.replace(/\*\//g, "*_/") + " ***!\n");
-					source.add("  \\****" + req.replace(/./g, "*") + "****/\n");
+					const reqStr = req.replace(/\*\//g, "*_/");
+					const reqStrStar = "*".repeat(reqStr.length);
+					source.add("/*!****" + reqStrStar + "****!*\\\n");
+					source.add("  !*** " + reqStr + " ***!\n");
+					source.add("  \\****" + reqStrStar + "****/\n");
 					if (
 						Array.isArray(module.buildMeta.providedExports) &&
 						module.buildMeta.providedExports.length === 0