diff --git a/CMakeLists.txt b/CMakeLists.txt
index 113128f..32b7ee6 100755
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -3,6 +3,10 @@ project(DarkRP2D)
 set (CMAKE_CXX_STANDARD 11)
 include(ExternalProject)
 
+if(NOT CMAKE_BUILD_TYPE) 
+    set(CMAKE_BUILD_TYPE Release)
+endif(NOT CMAKE_BUILD_TYPE)
+
 MESSAGE( STATUS "PROJECT_SOURCE_DIR: " ${PROJECT_SOURCE_DIR} )
 MESSAGE( STATUS "DarkRP2D_SOURCE_DIR: " ${DarkRP2D_SOURCE_DIR} )