diff --git a/doc/Doxyfile b/doc/Doxyfile
index 96327ff6e5..e2a9d05fdb 100644
--- a/doc/Doxyfile
+++ b/doc/Doxyfile
@@ -1056,7 +1056,7 @@ FORMULA_TRANSPARENT    = YES
 # typically be disabled. For large projects the javascript based search engine
 # can be slow, then enabling SERVER_BASED_SEARCH may provide a better solution.
 
-SEARCHENGINE           = NO
+SEARCHENGINE           = YES
 
 # When the SERVER_BASED_SEARCH tag is enabled the search engine will be
 # implemented using a PHP enabled web server instead of at the web client