diff --git a/param.h b/param.h
index ed940a8ff..00ee068fb 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 512
+#define DGEMM_DEFAULT_Q 448
 #define CGEMM_DEFAULT_Q 224
 #define ZGEMM_DEFAULT_Q 112