diff --git a/libs/vkd3d-shader/spirv.c b/libs/vkd3d-shader/spirv.c
index bcbd9baa4..e75725cbd 100644
--- a/libs/vkd3d-shader/spirv.c
+++ b/libs/vkd3d-shader/spirv.c
@@ -2524,6 +2524,7 @@ static uint32_t spirv_get_type_id(struct vkd3d_spirv_builder *builder,
 
             case VSIR_DATA_I32:
             case VSIR_DATA_U32:
+            case VSIR_DATA_MIXED:
                 type_id = vkd3d_spirv_get_op_type_int(builder, 32, data_type == VSIR_DATA_I32);
                 break;