diff --git a/src/mmg/mmg_dialog.cpp b/src/mmg/mmg_dialog.cpp
index 0897b476e..8618b7abc 100644
--- a/src/mmg/mmg_dialog.cpp
+++ b/src/mmg/mmg_dialog.cpp
@@ -1681,7 +1681,7 @@ mmg_dialog::create_header_editor_window(const wxString &file_name) {
 
 void
 mmg_dialog::header_editor_frame_closed(header_editor_frame_c *frame) {
-  header_editor_frames.erase(find(header_editor_frames.begin(), header_editor_frames.end(), frame));
+  header_editor_frames.erase(mxfind(frame, header_editor_frames));
 }
 
 #if defined(HAVE_CURL_EASY_H)