diff --git a/src/virtio/vulkan/vn_cs.h b/src/virtio/vulkan/vn_cs.h
index 3a04738fee1..70d75e40b6c 100644
--- a/src/virtio/vulkan/vn_cs.h
+++ b/src/virtio/vulkan/vn_cs.h
@@ -81,6 +81,18 @@ struct vn_cs_decoder {
    const void *end;
 };
 
+static inline bool
+vn_cs_renderer_protocol_has_api_version(UNUSED uint32_t api_version)
+{
+   return true;
+}
+
+static inline bool
+vn_cs_renderer_protocol_has_extension(UNUSED uint32_t ext_number)
+{
+   return true;
+}
+
 void
 vn_cs_encoder_init(struct vn_cs_encoder *enc,
                    struct vn_instance *instance,