diff --git a/base/shell/explorer/syspager.cpp b/base/shell/explorer/syspager.cpp
index 21869331509..8d4f9145ce5 100644
--- a/base/shell/explorer/syspager.cpp
+++ b/base/shell/explorer/syspager.cpp
@@ -742,6 +742,7 @@ BOOL CNotifyToolbar::AddButton(_In_ CONST NOTIFYICONDATA *iconData)
     tbBtn.dwData = (DWORD_PTR)notifyItem;
     tbBtn.iString = (INT_PTR) text;
     tbBtn.idCommand = GetButtonCount();
+    tbBtn.iBitmap = -1;
 
     if (iconData->uFlags & NIF_STATE)
     {