diff --git a/dlls/powrprof/powrprof.c b/dlls/powrprof/powrprof.c
index 3a5b93fed3c..ac1fa34bc05 100644
--- a/dlls/powrprof/powrprof.c
+++ b/dlls/powrprof/powrprof.c
@@ -350,6 +350,12 @@ DWORD WINAPI PowerSettingRegisterNotification(const GUID *setting, DWORD flags,
     return ERROR_SUCCESS;
 }
 
+DWORD WINAPI PowerSettingUnregisterNotification(HPOWERNOTIFY handle)
+{
+    FIXME("(%p) stub!\n", handle);
+    return ERROR_SUCCESS;
+}
+
 BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)
 {
    switch(fdwReason) {
diff --git a/dlls/powrprof/powrprof.spec b/dlls/powrprof/powrprof.spec
index 3524be251a6..7a65fd37fc2 100644
--- a/dlls/powrprof/powrprof.spec
+++ b/dlls/powrprof/powrprof.spec
@@ -20,6 +20,7 @@
 @ stdcall PowerRegisterSuspendResumeNotification(long ptr ptr)
 @ stdcall PowerUnregisterSuspendResumeNotification(ptr)
 @ stdcall PowerSettingRegisterNotification(ptr long ptr ptr)
+@ stdcall PowerSettingUnregisterNotification(ptr)
 @ stdcall ReadGlobalPwrPolicy (ptr)
 @ stdcall ReadProcessorPwrScheme (long ptr)
 @ stdcall ReadPwrScheme (long ptr)
diff --git a/include/powrprof.h b/include/powrprof.h
index 51fa158f239..4c6cee41d16 100644
--- a/include/powrprof.h
+++ b/include/powrprof.h
@@ -163,6 +163,7 @@ DWORD   WINAPI PowerEnumerate(HKEY, const GUID *, const GUID *, POWER_DATA_ACCES
 DWORD   WINAPI PowerRegisterSuspendResumeNotification(DWORD, HANDLE, PHPOWERNOTIFY);
 DWORD   WINAPI PowerUnregisterSuspendResumeNotification(HPOWERNOTIFY);
 DWORD   WINAPI PowerSettingRegisterNotification(const GUID *, DWORD, HANDLE, PHPOWERNOTIFY);
+DWORD   WINAPI PowerSettingUnregisterNotification(HPOWERNOTIFY);
 BOOLEAN WINAPI ReadGlobalPwrPolicy(PGLOBAL_POWER_POLICY);
 BOOLEAN WINAPI ReadProcessorPwrScheme(UINT, PMACHINE_PROCESSOR_POWER_POLICY);
 BOOLEAN WINAPI ReadPwrScheme(UINT, PPOWER_POLICY);