diff --git a/src/agents/skills-install.ts b/src/agents/skills-install.ts
index ee8366dcd..8b53aad2f 100644
--- a/src/agents/skills-install.ts
+++ b/src/agents/skills-install.ts
@@ -389,7 +389,7 @@ export async function installSkill(params: SkillInstallRequest): Promise<SkillIn
           code: brewResult.code,
         };
       }
-    } else if (resolveRuntimePlatform() === "windows" && hasBinary("winget")) {
+    } else if (resolveRuntimePlatform() === "win32" && hasBinary("winget")) {
       const result = await installWithWinget("astral-sh.uv", timeoutMs);
       if (result.code !== 0) {
         return {