diff --git a/cmake/prebuild.cmake b/cmake/prebuild.cmake
index da185db5a..086df1943 100644
--- a/cmake/prebuild.cmake
+++ b/cmake/prebuild.cmake
@@ -133,6 +133,10 @@ if (DEFINED CORE AND CMAKE_CROSSCOMPILING AND NOT (${HOST_OS} STREQUAL "WINDOWSS
       set(CGEMM_UNROLL_N 2)
       set(ZGEMM_UNROLL_M 2)
       set(ZGEMM_UNROLL_N 2)
+      set(CGEMM3M_UNROLL_M 8)
+      set(CGEMM3M_UNROLL_N 4)
+      set(ZGEMM3M_UNROLL_M 4)
+      set(ZGEMM3M_UNROLL_N 4)
   elseif ("${TCORE}" STREQUAL "ARMV7")
     file(APPEND ${TARGET_CONF_TEMP}
       "#define L1_DATA_SIZE\t65536\n"