diff --git a/cmake/prebuild.cmake b/cmake/prebuild.cmake
index ff7715c4b..4067138b4 100644
--- a/cmake/prebuild.cmake
+++ b/cmake/prebuild.cmake
@@ -198,10 +198,10 @@ if (DEFINED CORE AND CMAKE_CROSSCOMPILING AND NOT (${HOST_OS} STREQUAL "WINDOWSS
 if ("${TCORE}" STREQUAL "CORTEXA57")     
     set(SGEMM_UNROLL_M 16)
     set(SGEMM_UNROLL_N 4)
-else       
+else ()
     set(SGEMM_UNROLL_M 8)
     set(SGEMM_UNROLL_N 8) 
-endif
+endif ()
     set(DGEMM_UNROLL_M 8)
     set(DGEMM_UNROLL_N 4)
     set(CGEMM_UNROLL_M 8)