diff --git a/CMakeLists.txt b/CMakeLists.txt
index 738b6cde0..fb417d809 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -39,6 +39,7 @@ if( CMAKE_COMPILER_IS_GNUCXX )
 endif()
 
 cmake_policy( SET CMP0023 OLD )
+cmake_policy( SET CMP0028 NEW ) # double colons in KF5::Foo and Qt5::Foo are necessarily IMPORTED or ALIAS targets, don't search further
 
 # Keep cmake 3.0 quiet
 if( POLICY CMP0043 )