diff --git a/CMakeLists.txt b/CMakeLists.txt
index 5a4a604..aa7cd02 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -37,8 +37,8 @@ include_directories(${MBOOST_INCLUDE_DIR})
 link_directories(${MBOOST_LIB_DIR})
 endif()
 
-set(LIBRARY_OUTPUT_PATH ${PROJECT_BINARY_DIR}/bin/${CMAKE_BUILD_TYPE})
-set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${PROJECT_BINARY_DIR}/bin/${CMAKE_BUILD_TYPE})
+set(LIBRARY_OUTPUT_PATH ${CMAKE_BINARY_DIR}/bin/${CMAKE_BUILD_TYPE})
+set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin/${CMAKE_BUILD_TYPE})
 
 add_library(ofen STATIC ${SRC_FILES})
 target_include_directories(ofen PUBLIC ${CMAKE_CURRENT_SOURCE_DIR}/include ${CMAKE_CURRENT_SOURCE_DIR}/3rd)