diff --git a/reactos/lib/shell32/dialogs.c b/reactos/lib/shell32/dialogs.c
index 8357d56fdd8..5ebd398c058 100644
--- a/reactos/lib/shell32/dialogs.c
+++ b/reactos/lib/shell32/dialogs.c
@@ -406,6 +406,15 @@ int WINAPI RestartDialogEx(HWND hWndOwner, LPCWSTR lpwstrReason, DWORD uFlags, D
     return 0;
 }
 
+/*************************************************************************
+ * LogoffWindowsDialog				[SHELL32.54]
+ */
+
+int WINAPI LogoffWindowsDialog(DWORD uFlags)
+{
+    ERR("LogoffWindowsDialog is UNIMPLEMENTED\n");
+    return 0;
+}
 
 /*************************************************************************
  * RestartDialog				[SHELL32.59]
diff --git a/reactos/lib/shell32/shell32.spec b/reactos/lib/shell32/shell32.spec
index 7d172c93b33..c1def3956f7 100644
--- a/reactos/lib/shell32/shell32.spec
+++ b/reactos/lib/shell32/shell32.spec
@@ -47,6 +47,7 @@
   51 stdcall -noname PathResolve(str long long) PathResolveAW
   52 stdcall -noname PathGetArgs(str) PathGetArgsAW
   53 stdcall DoEnvironmentSubst(long long) DoEnvironmentSubstAW
+  54 stdcall -noname LogoffWindowsDialog(ptr)
   55 stdcall -noname PathQuoteSpaces(ptr) PathQuoteSpacesAW
   56 stdcall -noname PathUnquoteSpaces(str) PathUnquoteSpacesAW
   57 stdcall -noname PathGetDriveNumber(str) PathGetDriveNumberAW