diff --git a/CMakeLists.txt b/CMakeLists.txt
index d13a2f89..39dd9c1d 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,14 +1,11 @@
 project(krfb)
 
-
 check_symbol_exists(rfbInitServer  "rfb/rfb.h"     HAVE_LIBVNCSERVER)
 macro_bool_to_01(X11_Xdamage_FOUND HAVE_XDAMAGE)
 macro_bool_to_01(X11_XShm_FOUND HAVE_XSHM)
 configure_file(${CMAKE_CURRENT_SOURCE_DIR}/config-krfb.h.cmake ${CMAKE_CURRENT_BINARY_DIR}/config-krfb.h )
 include_directories(${CMAKE_CURRENT_BINARY_DIR}) # for config-krfb.h
 
-add_definitions ( -DQT3_SUPPORT -DQT3_SUPPORT_WARNINGS)
-
 #add_subdirectory(kinetd)
 #add_subdirectory(kcm_krfb)
 if (HAVE_LIBVNCSERVER)