diff --git a/CMakeLists.txt b/CMakeLists.txt
index c7ef238..2aa5ab9 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1066,7 +1066,7 @@ set_target_properties (js8call PROPERTIES
   MACOSX_BUNDLE_BUNDLE_NAME "${PROJECT_NAME}"
   MACOSX_BUNDLE_BUNDLE_EXECUTABLE_NAME "${PROJECT_NAME}"
   MACOSX_BUNDLE_COPYRIGHT "${PROJECT_COPYRIGHT}"
-  MACOSX_BUNDLE_GUI_IDENTIFIER "org.k1jt.wsjtx"
+  MACOSX_BUNDLE_GUI_IDENTIFIER "org.kn4crd.js8call"
   )
 
 target_include_directories (js8call PRIVATE ${FFTW3_INCLUDE_DIRS})