diff --git a/Modules/getpath.c b/Modules/getpath.c
index 418c683ce66..1ab94c6448e 100644
--- a/Modules/getpath.c
+++ b/Modules/getpath.c
@@ -381,7 +381,7 @@ calculate_path(void)
     NSModule pythonModule;
 #endif
 #ifdef __APPLE__
-    unsigned long nsexeclength = MAXPATHLEN;
+    uint32_t nsexeclength = MAXPATHLEN;
 #endif
 
 	/* If there is no slash in the argv0 path, then we have to