diff --git a/openpilot/selfdrive/modeld/compile_modeld.py b/openpilot/selfdrive/modeld/compile_modeld.py
index d851c3cc86..52be6897c0 100755
--- a/openpilot/selfdrive/modeld/compile_modeld.py
+++ b/openpilot/selfdrive/modeld/compile_modeld.py
@@ -329,4 +329,7 @@ if __name__ == "__main__":
 
   with open(args.output, "wb") as f:
     dump_oob(out, f)
+  with open(args.output, "rb") as f:
+    load_oob(f)
+    assert not f.read(1), "unexpected model buffer data"
   print(f"Saved JITs to {args.output} ({os.path.getsize(args.output) / 1e6:.2f} MB)")