diff --git a/src/mesa/main/dlist.c b/src/mesa/main/dlist.c
index 3647401a1bd..93b8a8f56d2 100644
--- a/src/mesa/main/dlist.c
+++ b/src/mesa/main/dlist.c
@@ -3186,6 +3186,7 @@ save_ShadeModel(GLenum mode)
    if (ctx->ListState.Current.ShadeModel == mode)
       return;
 
+   SAVE_FLUSH_VERTICES(ctx);
    ctx->ListState.Current.ShadeModel = mode;
 
    n = ALLOC_INSTRUCTION(ctx, OPCODE_SHADE_MODEL, 1);