diff --git a/CMakeLists.txt b/CMakeLists.txt
index 9d79367..5609467 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -48,6 +48,7 @@ set_package_properties(OpenEXR PROPERTIES
 add_definitions(-DQT_NO_FOREACH)
 add_definitions(-DQT_DISABLE_DEPRECATED_BEFORE=0x050d00)
 add_definitions(-DQT_DEPRECATED_WARNINGS_SINCE=0x060000)
+add_definitions(-DKF_DISABLE_DEPRECATED_BEFORE_AND_AT=0x053f00)
 add_subdirectory(src)
 if (BUILD_TESTING)
     add_subdirectory(autotests)