diff --git a/legacy/eio/doc/Doxyfile b/legacy/eio/doc/Doxyfile
index c21c19400a..7dcf94cb38 100644
--- a/legacy/eio/doc/Doxyfile
+++ b/legacy/eio/doc/Doxyfile
@@ -610,7 +610,7 @@ RECURSIVE              = YES
 # excluded from the INPUT source files. This way you can easily exclude a
 # subdirectory from a directory tree whose root is specified with the INPUT tag.
 
-EXCLUDE                =
+EXCLUDE                = ../src/lib/eio_private.h
 
 # The EXCLUDE_SYMLINKS tag can be used select whether or not files or
 # directories that are symbolic links (a Unix filesystem feature) are excluded