diff --git a/reactos/subsystems/win32/win32k/ntuser/ntstubs.c b/reactos/subsystems/win32/win32k/ntuser/ntstubs.c
index 2d3a9744c18..afed2ff209a 100644
--- a/reactos/subsystems/win32/win32k/ntuser/ntstubs.c
+++ b/reactos/subsystems/win32/win32k/ntuser/ntstubs.c
@@ -540,6 +540,7 @@ NtUserSetSysColors(
      ProbeForRead(lpaRgbValues,
                    sizeof(INT),
                    1);
+// Developers: We are thread locked and calling gdi.
      Ret = IntSetSysColors(cElements, (INT*)lpaElements, (COLORREF*)lpaRgbValues);
   }
   _SEH_HANDLE
@@ -552,6 +553,10 @@ NtUserSetSysColors(
       SetLastNtError(Status);
       Ret = FALSE;
   }
+  if (Ret)
+  {
+     UserPostMessage(HWND_BROADCAST, WM_SYSCOLORCHANGE, 0, 0);
+  }
   UserLeave();
   return Ret;
 }
diff --git a/reactos/subsystems/win32/win32k/objects/stockobj.c b/reactos/subsystems/win32/win32k/objects/stockobj.c
index 1d550cf2ac0..86a009916b3 100644
--- a/reactos/subsystems/win32/win32k/objects/stockobj.c
+++ b/reactos/subsystems/win32/win32k/objects/stockobj.c
@@ -189,8 +189,6 @@ IntSetSysColors(UINT nColors, INT *Elements, COLORREF *Colors)
     Elements++;
     Colors++;
   }
-  UserPostMessage(HWND_BROADCAST, WM_SYSCOLORCHANGE, 0, 0);
-
   return nColors > 0;
 }