diff --git a/src/msvc/msvc.ts b/src/msvc/msvc.ts
index bf58fb4d..94afdf92 100644
--- a/src/msvc/msvc.ts
+++ b/src/msvc/msvc.ts
@@ -29,6 +29,9 @@ export async function setupMSVC(
   spectre?: boolean,
   arch = osArch()
 ): Promise<void> {
+  if (process.platform !== "win32") {
+    return
+  }
   let toolset: string | undefined
   let VCTargetsPath: string | undefined
   if (version === "2015") {