diff --git a/scripts/test.py b/scripts/test.py
index 92a13b1d..c8196b36 100755
--- a/scripts/test.py
+++ b/scripts/test.py
@@ -93,7 +93,7 @@ PROLOGUE = """
     __attribute__((unused)) lfs_dir_t dir;
     __attribute__((unused)) struct lfs_info info;
     __attribute__((unused)) char path[1024];
-    __attribute__((unused)) uint8_t buffer[1024];
+    __attribute__((unused)) uint8_t buffer[(1024 > LFS_BLOCK_SIZE * 4) ? (1024) : (LFS_BLOCK_SIZE * 4)];
     __attribute__((unused)) lfs_size_t size;
     __attribute__((unused)) int err;