diff --git a/src/amd/vulkan/radv_private.h b/src/amd/vulkan/radv_private.h
index d305a3827b6..cc4e943ceb4 100644
--- a/src/amd/vulkan/radv_private.h
+++ b/src/amd/vulkan/radv_private.h
@@ -1900,7 +1900,7 @@ struct radv_rasterization_info {
    bool discard_enable;
    VkFrontFace front_face;
    VkCullModeFlags cull_mode;
-   VkPolygonMode polygon_mode;
+   uint8_t polygon_mode; /* VkPolygonMode */
    bool depth_bias_enable;
    bool depth_clamp_enable;
    float line_width;