diff --git a/ggml.h b/ggml.h
index 50aa7364b..38ae9a6ee 100644
--- a/ggml.h
+++ b/ggml.h
@@ -221,6 +221,7 @@ extern "C" {
         GGML_TYPE_Q4_0 = 2,
         GGML_TYPE_Q4_1 = 3,
         GGML_TYPE_Q4_2 = 4,
+        // GGML_TYPE_Q4_3 (5) support has been removed
         GGML_TYPE_Q5_0 = 6,
         GGML_TYPE_Q5_1 = 7,
         GGML_TYPE_Q8_0 = 8,
diff --git a/llama.h b/llama.h
index 2ff48054d..936c52139 100644
--- a/llama.h
+++ b/llama.h
@@ -73,6 +73,7 @@ extern "C" {
         LLAMA_FTYPE_MOSTLY_Q4_1 = 3,  // except 1d tensors
         LLAMA_FTYPE_MOSTLY_Q4_1_SOME_F16 = 4, // tok_embeddings.weight and output.weight are F16
         LLAMA_FTYPE_MOSTLY_Q4_2 = 5,  // except 1d tensors
+        // LLAMA_FTYPE_MOSTLY_Q4_3 (6) support has been removed
         LLAMA_FTYPE_MOSTLY_Q8_0 = 7,  // except 1d tensors
         LLAMA_FTYPE_MOSTLY_Q5_0 = 8,  // except 1d tensors
         LLAMA_FTYPE_MOSTLY_Q5_1 = 9,  // except 1d tensors