diff --git a/config/dunnington/bli_kernel.h b/config/dunnington/bli_kernel.h
index 85717a8f1..89f4ac030 100644
--- a/config/dunnington/bli_kernel.h
+++ b/config/dunnington/bli_kernel.h
@@ -59,7 +59,7 @@
 #define BLIS_DEFAULT_NC_S              8192
 
 #define BLIS_DEFAULT_MC_D              384
-#define BLIS_DEFAULT_KC_D              256
+#define BLIS_DEFAULT_KC_D              384
 #define BLIS_DEFAULT_NC_D              4096
 
 #define BLIS_DEFAULT_MC_C              128
@@ -82,8 +82,8 @@
 #define BLIS_EXTEND_KC_S               0 //(BLIS_DEFAULT_KC_S/4)
 #define BLIS_EXTEND_NC_S               0 //(BLIS_DEFAULT_NC_S/4)
 
-#define BLIS_EXTEND_MC_D               0 //(BLIS_DEFAULT_MC_D/2)
-#define BLIS_EXTEND_KC_D               0 //(BLIS_DEFAULT_KC_D/2)
+#define BLIS_EXTEND_MC_D               (BLIS_DEFAULT_MC_D/4)
+#define BLIS_EXTEND_KC_D               (BLIS_DEFAULT_KC_D/4)
 #define BLIS_EXTEND_NC_D               0 //(BLIS_DEFAULT_NC_D/4)
 
 #define BLIS_EXTEND_MC_C               0 //(BLIS_DEFAULT_MC_C/4)