diff --git a/dlls/mshtml/htmldoc.c b/dlls/mshtml/htmldoc.c
index ed3075b4dbc..418e152e7c6 100644
--- a/dlls/mshtml/htmldoc.c
+++ b/dlls/mshtml/htmldoc.c
@@ -4893,7 +4893,7 @@ static const tid_t HTMLDocumentNode_iface_tids[] = {
     0
 };
 
-void HTMLDocumentNode_init_dispex_info(dispex_data_t *info, compat_mode_t mode)
+static void HTMLDocumentNode_init_dispex_info(dispex_data_t *info, compat_mode_t mode)
 {
     HTMLDOMNode_init_dispex_info(info, mode);