diff --git a/docs/reference/glib/glib-sections.txt b/docs/reference/glib/glib-sections.txt
index aeee788a6..c6725e8dd 100644
--- a/docs/reference/glib/glib-sections.txt
+++ b/docs/reference/glib/glib-sections.txt
@@ -1515,6 +1515,7 @@ G_WIN32_IS_NT_BASED
 
 <SUBSECTION Private>
 g_win32_ftruncate
+pipe
 
 </SECTION>