diff --git a/platform/unix.c b/platform/unix.c
index 42bed07..7d321e9 100644
--- a/platform/unix.c
+++ b/platform/unix.c
@@ -403,8 +403,10 @@ LinkedStringList *__PHYSFS_platformEnumerateFiles(const char *dirname,
         l->next = NULL;
     } /* while */
 
+    if (buf != NULL)
+        free(buf);
+
     closedir(dir);
-    free(buf);
     return(retval);
 } /* __PHYSFS_platformEnumerateFiles */