diff --git a/racket/collects/ffi/unsafe/nsalloc.rkt b/racket/collects/ffi/unsafe/nsalloc.rkt
index 4cb5e551ed..496984ac88 100644
--- a/racket/collects/ffi/unsafe/nsalloc.rkt
+++ b/racket/collects/ffi/unsafe/nsalloc.rkt
@@ -7,8 +7,9 @@
                       call-with-autorelease))
 
 ;; Make sure Foundation is loaded:
-(void (ffi-lib "/System/Library/Frameworks/Foundation.framework/Foundation"
-               #:fail (lambda () #f)))
+(when (eq? 'macosx (system-type))
+  (void (ffi-lib "/System/Library/Frameworks/Foundation.framework/Foundation"
+                 #:fail (lambda () #f))))
 
 (import-class NSAutoreleasePool)