diff --git a/docs/Doxyfile.qmake b/docs/Doxyfile.qmake
index 0d7e62506..f6eefef88 100644
--- a/docs/Doxyfile.qmake
+++ b/docs/Doxyfile.qmake
@@ -804,7 +804,7 @@ RECURSIVE              = YES
 # Note that relative paths are relative to the directory from which doxygen is
 # run.
 
-EXCLUDE                =
+EXCLUDE                = $(DOXY_SRC_ROOT)/xbus/libxplanemp
 
 # The EXCLUDE_SYMLINKS tag can be used to select whether or not files or
 # directories that are symbolic links (a Unix file system feature) are excluded