diff --git a/src/i965_render.c b/src/i965_render.c
index 9d45944..aa5e763 100644
--- a/src/i965_render.c
+++ b/src/i965_render.c
@@ -2703,7 +2703,7 @@ gen7_composite_wm_state(intel_screen_private *intel,
 	OUT_BATCH((1 << GEN7_PS_SAMPLER_COUNT_SHIFT) |
 		  (num_surfaces << GEN7_PS_BINDING_TABLE_ENTRY_COUNT_SHIFT));
 	OUT_BATCH(0); /* scratch space base offset */
-	OUT_BATCH(((86 - 1) << GEN7_PS_MAX_THREADS_SHIFT) |
+	OUT_BATCH(((42 - 1) << GEN7_PS_MAX_THREADS_SHIFT) |
 		  GEN7_PS_ATTRIBUTE_ENABLE |
 		  GEN7_PS_16_DISPATCH_ENABLE);
 	OUT_BATCH((6 << GEN7_PS_DISPATCH_START_GRF_SHIFT_0));
diff --git a/src/i965_video.c b/src/i965_video.c
index d9350ce..ba2da83 100644
--- a/src/i965_video.c
+++ b/src/i965_video.c
@@ -1658,7 +1658,7 @@ gen7_upload_wm_state(ScrnInfoPtr scrn, Bool is_packed)
 
 	OUT_BATCH(0); /* scratch space base offset */
 	OUT_BATCH(
-		((86 - 1) << GEN7_PS_MAX_THREADS_SHIFT) |
+		((42 - 1) << GEN7_PS_MAX_THREADS_SHIFT) |
 		GEN7_PS_ATTRIBUTE_ENABLE |
 		GEN7_PS_16_DISPATCH_ENABLE);
 	OUT_BATCH(