diff --git a/include/llama.h b/include/llama.h
index b17e8f3353..f44e2383d0 100644
--- a/include/llama.h
+++ b/include/llama.h
@@ -358,6 +358,7 @@ extern "C" {
         void * kv_overrides;                  // pointer to vector containing overrides
         void * tensor_types;                  // pointer to vector containing tensor types
         void * prune_layers;                  // pointer to vector containing layer indices to prune
+        float target_bpw;                     // target bits per weight (bpw)
     } llama_model_quantize_params;
 
     typedef struct llama_logit_bias {