diff --git a/src/gallium/include/pipe/p_state.h b/src/gallium/include/pipe/p_state.h
index e6dadc0e0a2..782e2183b80 100644
--- a/src/gallium/include/pipe/p_state.h
+++ b/src/gallium/include/pipe/p_state.h
@@ -306,7 +306,7 @@ struct pipe_stream_output_info
 struct pipe_shader_state
 {
    enum pipe_shader_ir type;
-   struct{
+   union {
       const struct tgsi_token *tokens;
       struct nir_shader *nir;
    } ir;