diff --git a/param.h b/param.h
index 2dffaae3c..3d592c056 100644
--- a/param.h
+++ b/param.h
@@ -1670,7 +1670,7 @@ USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 #define SGEMM_DEFAULT_UNROLL_M 16
 #ifndef DYNAMIC_ARCH
-#define DGEMM_DEFAULT_UNROLL_M 16
+#define DGEMM_DEFAULT_UNROLL_M 4
 #else
 #define DGEMM_DEFAULT_UNROLL_M 4
 #endif
@@ -1681,7 +1681,7 @@ USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 #define SGEMM_DEFAULT_UNROLL_N 4
 #ifndef DYNAMIC_ARCH
-#define DGEMM_DEFAULT_UNROLL_N 2
+#define DGEMM_DEFAULT_UNROLL_N 8
 #else
 #define DGEMM_DEFAULT_UNROLL_N 8
 #endif