diff --git a/param.h b/param.h
index 9dc94c420..d39fc4a1d 100644
--- a/param.h
+++ b/param.h
@@ -1691,16 +1691,16 @@ USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #else
 
 #define SGEMM_DEFAULT_P 768
-#define DGEMM_DEFAULT_P 512
+#define DGEMM_DEFAULT_P 384
 #define CGEMM_DEFAULT_P 384
 #define ZGEMM_DEFAULT_P 256
 
 #ifdef WINDOWS_ABI
 #define SGEMM_DEFAULT_Q 192
-#define DGEMM_DEFAULT_Q 128
+#define DGEMM_DEFAULT_Q 168
 #else
 #define SGEMM_DEFAULT_Q 192
-#define DGEMM_DEFAULT_Q 128
+#define DGEMM_DEFAULT_Q 168
 #endif
 #define CGEMM_DEFAULT_Q 192
 #define ZGEMM_DEFAULT_Q 128