diff --git a/ggml.h b/ggml.h
index cade2e73b..5a45752d0 100644
--- a/ggml.h
+++ b/ggml.h
@@ -364,12 +364,12 @@ extern "C" {
         GGML_TYPE_IQ3_S   = 21,
         GGML_TYPE_IQ2_S   = 22,
         GGML_TYPE_IQ4_XS  = 23,
-        GGML_TYPE_IQ1_M   = 24,
-        GGML_TYPE_I8      = 25,
-        GGML_TYPE_I16     = 26,
-        GGML_TYPE_I32     = 27,
-        GGML_TYPE_I64     = 28,
-        GGML_TYPE_F64     = 29,
+        GGML_TYPE_I8      = 24,
+        GGML_TYPE_I16     = 25,
+        GGML_TYPE_I32     = 26,
+        GGML_TYPE_I64     = 27,
+        GGML_TYPE_F64     = 28,
+        GGML_TYPE_IQ1_M   = 29,
         GGML_TYPE_COUNT,
     };
 
diff --git a/gguf-py/gguf/constants.py b/gguf-py/gguf/constants.py
index e47896e2a..4ab026482 100644
--- a/gguf-py/gguf/constants.py
+++ b/gguf-py/gguf/constants.py
@@ -706,6 +706,7 @@ class GGMLQuantizationType(IntEnum):
     I32     = 26
     I64     = 27
     F64     = 28
+    IQ1_M   = 29
 
 
 class GGUFEndian(IntEnum):