Index: subsystems/win32/win32k/eng/xlate.c
===================================================================
--- subsystems/win32/win32k/eng/xlate.c	(revision 39656)
+++ subsystems/win32/win32k/eng/xlate.c	(working copy)
@@ -250,7 +250,7 @@
       {
          XlateObj->pulXlate[i] = ClosestColorMatch(
             XlateGDI, SourcePalGDI->IndexedColors + i,
-            DestPalGDI->IndexedColors, XlateObj->cEntries);
+            DestPalGDI->IndexedColors, DestPalGDI->NumColors);
          if (XlateObj->pulXlate[i] != i)
             XlateObj->flXlate &= ~XO_TRIVIAL;
       }