---
 src/mesa/state_tracker/st_mesa_to_tgsi.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/mesa/state_tracker/st_mesa_to_tgsi.c 
b/src/mesa/state_tracker/st_mesa_to_tgsi.c
index 7d79c62..1c2abc1 100644
--- a/src/mesa/state_tracker/st_mesa_to_tgsi.c
+++ b/src/mesa/state_tracker/st_mesa_to_tgsi.c
@@ -1124,7 +1124,7 @@ st_translate_mesa_program(
          if (outputSemanticName[i] == TGSI_SEMANTIC_FOG) {
             /* force register to contain a fog coordinate in the form (F, 0, 
0, 1). */
             ureg_MOV(ureg,
-                     ureg_writemask(t->outputs[i], TGSI_WRITEMASK_XYZW & 
~TGSI_WRITEMASK_X),
+                     ureg_writemask(t->outputs[i], TGSI_WRITEMASK_YZW),
                      ureg_imm4f(ureg, 0.0f, 0.0f, 0.0f, 1.0f));
             t->outputs[i] = ureg_writemask(t->outputs[i], TGSI_WRITEMASK_X);
         }
-- 
1.7.10.4

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