diff --git a/reactos/dll/win32/powrprof/powrprof.c b/reactos/dll/win32/powrprof/powrprof.c
index 6005bee32e6..00da9a07144 100644
--- a/reactos/dll/win32/powrprof/powrprof.c
+++ b/reactos/dll/win32/powrprof/powrprof.c
@@ -303,6 +303,15 @@ BOOLEAN WINAPI WritePwrScheme(PUINT puiID, LPWSTR lpszName, LPWSTR lpszDescripti
    return FALSE;
 }
 
+BOOLEAN WINAPI ValidatePowerPolicies(PGLOBAL_POWER_POLICY pGPP, PPOWER_POLICY pPP)
+{
+   /* FIXME: See note #3 */
+   FIXME("(%p, %p) stub!\n", pGPP, pPP);
+   SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
+   return FALSE;
+
+}
+
 BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)
 {
    FIXME("(%p, %ld, %p) not fully implemented\n", hinstDLL, fdwReason, lpvReserved);
diff --git a/reactos/dll/win32/powrprof/powrprof_gcc.def b/reactos/dll/win32/powrprof/powrprof_gcc.def
index b4d8413cb95..d6da31c1376 100644
--- a/reactos/dll/win32/powrprof/powrprof_gcc.def
+++ b/reactos/dll/win32/powrprof/powrprof_gcc.def
@@ -30,7 +30,7 @@ ReadProcessorPwrScheme@8
 ReadPwrScheme@8
 SetActivePwrScheme@12
 SetSuspendState@12
-;ValidatePowerPolicies@8
+ValidatePowerPolicies@8
 WriteGlobalPwrPolicy@4
 WriteProcessorPwrScheme@8
 WritePwrScheme@16
\ No newline at end of file