diff --git a/CMakeLists.txt b/CMakeLists.txt
index f16a5620d..ffa04b88e 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,4 +1,8 @@
 cmake_minimum_required(VERSION 2.8.9)
+
+# In Qt 5.1+ we have our own main() function, don't autolink to qtmain on Windows
+cmake_policy(SET CMP0020 OLD)
+
 project(MultiMC)
 
 ######## Set CMake options ########
diff --git a/depends/pack200/CMakeLists.txt b/depends/pack200/CMakeLists.txt
index 1befa3526..79c78f809 100644
--- a/depends/pack200/CMakeLists.txt
+++ b/depends/pack200/CMakeLists.txt
@@ -1,5 +1,8 @@
 CMAKE_MINIMUM_REQUIRED(VERSION 2.6)
 
+# In Qt 5.1+ we have our own main() function, don't autolink to qtmain on Windows
+cmake_policy(SET CMP0020 OLD)
+
 project(unpack200)
 
 # Find ZLIB for quazip