diff --git a/src/llama-quant.cpp b/src/llama-quant.cpp
index b66759b277..b187f5de96 100644
--- a/src/llama-quant.cpp
+++ b/src/llama-quant.cpp
@@ -306,6 +306,9 @@ static bool tensor_allows_quantization(const llama_model_quantize_params * param
     // NOTE: can't use LLM_TN here because the layer number is not known
     quantize &= name.find("ffn_gate_inp.weight") == std::string::npos;
 
+    // do not quantize the i32 token-id -> expert-id routing table (DeepSeek-V4)
+    quantize &= name.find("ffn_gate_tid2eid.weight") == std::string::npos;
+
     // these are very small (e.g. 4x4)
     quantize &= name.find("altup")  == std::string::npos;
     quantize &= name.find("laurel") == std::string::npos;