diff --git a/CMakeLists.txt b/CMakeLists.txt
index 8e90e4d5c1c7fc4967503f2e6753606e9d50645f..27b01993b3d0c16562abbb076e66d9860270ed46 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,7 +1,7 @@
 cmake_minimum_required(VERSION 3.0.0)
 
 # basic build option
-option(USE_OPENMP       "build with openmp support"      OFF)
+option(USE_OPENMP       "build with openmp support"      ON)
 option(USE_EXCEPTION    "build with exception"           ON)
 option(WITH_LOGGING     "print logging for debug"        OFF)
 option(WITH_SYMBOL      "build with all symbols"         ON) # turn off if use jni or ios io