diff --git a/external/qt-unix-signals/CMakeLists.txt b/external/qt-unix-signals/CMakeLists.txt
index edba2f72a6b..1270ef50f50 100644
--- a/external/qt-unix-signals/CMakeLists.txt
+++ b/external/qt-unix-signals/CMakeLists.txt
@@ -1,5 +1,3 @@
-cmake_minimum_required(VERSION 2.8.3)
-
 cmake_policy (SET CMP0048 NEW)
 
 project(QTSignals VERSION 0.1)