diff --git a/src/compressed_tensors/quantization/quant_config.py b/src/compressed_tensors/quantization/quant_config.py
index db27caf8..0a1dde60 100644
--- a/src/compressed_tensors/quantization/quant_config.py
+++ b/src/compressed_tensors/quantization/quant_config.py
@@ -258,4 +258,5 @@ def requires_calibration_data(self):
 
         return False
 
-    model_config = ConfigDict(extra="forbid")
+    # TODO set `extra="forbid"` when upstream transformers is compatible
+    model_config = ConfigDict(extra="ignore")