diff --git a/doc/asterisk-ng-doxygen.in b/doc/asterisk-ng-doxygen.in
index 51a3f5d583..2a7002c549 100644
--- a/doc/asterisk-ng-doxygen.in
+++ b/doc/asterisk-ng-doxygen.in
@@ -616,7 +616,8 @@ RECURSIVE              = yes
 EXCLUDE                = doc/api \
                          menuselect \
                          res/pjproject \
-                         addons/ooh323c/src
+                         addons/ooh323c/src \
+                         third-party
 
 # The EXCLUDE_SYMLINKS tag can be used select whether or not files or
 # directories that are symbolic links (a Unix filesystem feature) are excluded