diff --git a/src/gallium/include/pipe/p_state.h b/src/gallium/include/pipe/p_state.h
index 5194011d30e..037644d7963 100644
--- a/src/gallium/include/pipe/p_state.h
+++ b/src/gallium/include/pipe/p_state.h
@@ -376,6 +376,7 @@ struct pipe_blend_state
    unsigned alpha_to_one:1;
    unsigned max_rt:3;            /* index of max rt, Ie. # of cbufs minus 1 */
    unsigned advanced_blend_func:4;
+   unsigned blend_coherent:1;
    struct pipe_rt_blend_state rt[PIPE_MAX_COLOR_BUFS];
 };
 
diff --git a/src/mesa/state_tracker/st_atom_blend.c b/src/mesa/state_tracker/st_atom_blend.c
index edd6a3c7c5e..a78a1c2ec06 100644
--- a/src/mesa/state_tracker/st_atom_blend.c
+++ b/src/mesa/state_tracker/st_atom_blend.c
@@ -263,6 +263,10 @@ st_update_blend( struct st_context *st )
       blend->rt[i].colormask = colormask;
    }
 
+   if (ctx->Color._AdvancedBlendMode != BLEND_NONE) {
+      blend->blend_coherent = ctx->Color.BlendCoherent;
+   }
+
    if (ctx->Color.ColorLogicOpEnabled) {
       /* logicop enabled */
       blend->logicop_enable = 1;