diff --git a/param.h b/param.h
index 9f2abb2e2..2e8de74ee 100644
--- a/param.h
+++ b/param.h
@@ -3157,7 +3157,7 @@ is a big desktop or server with abundant cache rather than a phone or embedded d
 #define ZGEMM_DEFAULT_P 128
 
 #define SGEMM_DEFAULT_Q 352
-#define DGEMM_DEFAULT_Q 256
+#define DGEMM_DEFAULT_Q 512
 #define CGEMM_DEFAULT_Q 224
 #define ZGEMM_DEFAULT_Q 112