diff --git a/param.h b/param.h
index 03cea76c9..03d6fa11d 100644
--- a/param.h
+++ b/param.h
@@ -2891,11 +2891,11 @@ USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #define DGEMM_DEFAULT_UNROLL_M  8
 #define DGEMM_DEFAULT_UNROLL_N  4
 
-#define CGEMM_DEFAULT_UNROLL_M  1
-#define CGEMM_DEFAULT_UNROLL_N  4
+#define CGEMM_DEFAULT_UNROLL_M  2
+#define CGEMM_DEFAULT_UNROLL_N  2
 
-#define ZGEMM_DEFAULT_UNROLL_M  1
-#define ZGEMM_DEFAULT_UNROLL_N  4
+#define ZGEMM_DEFAULT_UNROLL_M  2
+#define ZGEMM_DEFAULT_UNROLL_N  2
 
 #define SGEMM_DEFAULT_P	128
 #define DGEMM_DEFAULT_P	128