diff --git a/src/infra/node-shell.ts b/src/infra/node-shell.ts
index 26d5ff1d3..29ac52e15 100644
--- a/src/infra/node-shell.ts
+++ b/src/infra/node-shell.ts
@@ -2,7 +2,7 @@ export function buildNodeShellCommand(command: string, platform?: string | null)
   const normalized = String(platform ?? "")
     .trim()
     .toLowerCase();
-  if (normalized.includes("win")) {
+  if (normalized === "win32") {
     return ["cmd.exe", "/d", "/s", "/c", command];
   }
   return ["/bin/sh", "-lc", command];