diff --git a/examples/common-ggml.cpp b/examples/common-ggml.cpp
index affc282..32c97e8 100644
--- a/examples/common-ggml.cpp
+++ b/examples/common-ggml.cpp
@@ -65,6 +65,7 @@ bool ggml_common_quantize_0(
         case GGML_FTYPE_MOSTLY_IQ2_XXS:
         case GGML_FTYPE_MOSTLY_IQ2_XS:
         case GGML_FTYPE_MOSTLY_IQ3_XXS:
+        case GGML_FTYPE_MOSTLY_IQ1_S:
                 {
                     fprintf(stderr, "%s: invalid model type %d\n", __func__, ftype);
                     return false;
@@ -197,6 +198,7 @@ bool ggml_common_quantize_0(
                 case GGML_TYPE_IQ2_XXS:
                 case GGML_TYPE_IQ2_XS:
                 case GGML_TYPE_IQ3_XXS:
+                case GGML_TYPE_IQ1_S:
                 case GGML_TYPE_COUNT:
                     {
                         fprintf(stderr, "%s: unsupported quantization type %d (%s)\n", __func__, ttype, ggml_type_name((ggml_type) ttype));