diff --git a/agents/CMakeLists.txt b/agents/CMakeLists.txt
index 978fdfec3..54786d4aa 100644
--- a/agents/CMakeLists.txt
+++ b/agents/CMakeLists.txt
@@ -1,7 +1,3 @@
-add_definitions(-DQT_NO_CAST_FROM_ASCII)
-add_definitions(-DQT_NO_CAST_TO_ASCII)
-add_definitions( -DQT_NO_CAST_FROM_BYTEARRAY )
-
 add_subdirectory(sendlateragent)
 add_subdirectory(archivemailagent)
 add_subdirectory(mailfilteragent)