diff --git a/cpp/coverage.sh b/cpp/coverage.sh
index 54cf480703..cc509b611b 100755
--- a/cpp/coverage.sh
+++ b/cpp/coverage.sh
@@ -1,5 +1,7 @@
 #!/bin/bash
 
+export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$(pwd)/milvus/lib
+
 LCOV_CMD="lcov"
 LCOV_GEN_CMD="genhtml"
 
diff --git a/cpp/src/CMakeLists.txt b/cpp/src/CMakeLists.txt
index 6c1bd12771..00e2e1e87d 100644
--- a/cpp/src/CMakeLists.txt
+++ b/cpp/src/CMakeLists.txt
@@ -187,6 +187,6 @@ install(FILES
         ${CMAKE_BINARY_DIR}/mysqlpp_ep-prefix/src/mysqlpp_ep/lib/${CMAKE_SHARED_LIBRARY_PREFIX}mysqlpp${CMAKE_SHARED_LIBRARY_SUFFIX}
         ${CMAKE_BINARY_DIR}/mysqlpp_ep-prefix/src/mysqlpp_ep/lib/${CMAKE_SHARED_LIBRARY_PREFIX}mysqlpp${CMAKE_SHARED_LIBRARY_SUFFIX}.3
         ${CMAKE_BINARY_DIR}/mysqlpp_ep-prefix/src/mysqlpp_ep/lib/${CMAKE_SHARED_LIBRARY_PREFIX}mysqlpp${CMAKE_SHARED_LIBRARY_SUFFIX}.3.2.4
-        DESTINATION bin/lib) #need to copy libmysqlpp.so
+        DESTINATION lib) #need to copy libmysqlpp.so
 
 add_subdirectory(sdk)