diff --git a/config/haswell/bli_cntx_init_haswell.c b/config/haswell/bli_cntx_init_haswell.c
index 879fa660d..cd646c737 100644
--- a/config/haswell/bli_cntx_init_haswell.c
+++ b/config/haswell/bli_cntx_init_haswell.c
@@ -154,7 +154,7 @@ void bli_cntx_init_haswell( cntx_t* cntx )
 
 	// Initialize sup thresholds with architecture-appropriate values.
 	//                                          s     d     c     z
-	bli_blksz_init_easy( &thresh[ BLIS_MT ],   -1,   80,   -1,   -1 );
+	bli_blksz_init_easy( &thresh[ BLIS_MT ],   -1,  180,   -1,   -1 );
 	bli_blksz_init_easy( &thresh[ BLIS_NT ],   -1,  100,   -1,   -1 );
 	bli_blksz_init_easy( &thresh[ BLIS_KT ],   -1,  120,   -1,   -1 );
 
diff --git a/config/zen/bli_cntx_init_zen.c b/config/zen/bli_cntx_init_zen.c
index 84f43bf32..0d76dff4d 100644
--- a/config/zen/bli_cntx_init_zen.c
+++ b/config/zen/bli_cntx_init_zen.c
@@ -178,7 +178,7 @@ void bli_cntx_init_zen( cntx_t* cntx )
 
 	// Initialize sup thresholds with architecture-appropriate values.
 	//                                          s     d     c     z
-	bli_blksz_init_easy( &thresh[ BLIS_MT ],   -1,   80,   -1,   -1 );
+	bli_blksz_init_easy( &thresh[ BLIS_MT ],   -1,  180,   -1,   -1 );
 	bli_blksz_init_easy( &thresh[ BLIS_NT ],   -1,  100,   -1,   -1 );
 	bli_blksz_init_easy( &thresh[ BLIS_KT ],   -1,  120,   -1,   -1 );