diff --git a/CMakeLists.txt b/CMakeLists.txt
index a1a64292c..217668c9d 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -43,6 +43,7 @@ include( TDESetupPaths )
 ##### setup and find essential stuff ############
 
 tde_setup_paths( )
+tde_setup_architecture_flags( )
 find_package( TQt )