diff --git a/CMakeLists.txt b/CMakeLists.txt
index 94ed40f..cab7992 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -42,8 +42,8 @@ source_group(TREE ${CMAKE_SOURCE_DIR} FILES ${project_c})
 option(Build_With_System_QT "Build With System QT" OFF)
 
 if(Build_With_System_QT)
-include_directories(/usr/include/qt5/ 
-                    /usr/include/qt5/QtCore /usr/include/qt5/QtWidgets /usr/include/qt5/QtGui  
+include_directories(/usr/include/qt5/ /usr/include/qt5/QtCore
+                    /usr/include/qt5/QtNetwork /usr/include/qt5/QtWidgets /usr/include/qt5/QtGui  
                     /usr/include/qt5/QtSql  /usr/include/qt5/QtMultimedia /usr/include/qt5/QtMultimediaWidgets )
 endif()