diff --git a/CMakeLists.txt b/CMakeLists.txt
index 25e8dc4a4..957be35f5 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -30,7 +30,6 @@ if(DOXYGEN_FOUND)
     set(DOXYGEN_INLINE_SOURCES YES)
     set(DOXYGEN_CREATE_SUBDIRS YES)
     set(DOXYGEN_EXTRACT_PRIVATE YES)
-    set(DOCYGEN_GENERATE_TREEVIEW YES)
     set(DOXYGEN_GENERATE_TREEVIEW YES)
     set(DOXYGEN_STRIP_CODE_COMMENTS NO)
     set(DOXYGEN_EXT_LINKS_IN_WINDOW YES)