diff --git a/src/gui/CMakeLists.txt b/src/gui/CMakeLists.txt
index dccc421b..e8443181 100644
--- a/src/gui/CMakeLists.txt
+++ b/src/gui/CMakeLists.txt
@@ -1,6 +1,6 @@
 cmake_minimum_required (VERSION 3.4)
 
-find_package (Qt5 COMPONENTS Widgets Network)
+find_package (Qt5 COMPONENTS Core Widgets Network)
 set (CMAKE_AUTOMOC ON)
 set (CMAKE_AUTORCC ON)
 set (CMAKE_AUTOUIC ON)