diff --git a/reactos/dll/win32/gdi32/objects/region.c b/reactos/dll/win32/gdi32/objects/region.c
index 519e2c7f493..cab574b4061 100644
--- a/reactos/dll/win32/gdi32/objects/region.c
+++ b/reactos/dll/win32/gdi32/objects/region.c
@@ -37,13 +37,11 @@ CreatePolyPolygonRgn( const POINT* Point,
                       int inPolygons,
                       int Mode)
 {
-/*  return (HRGN) NtGdiPolyPolyDraw(  (HDC) Mode,
+  return (HRGN) NtGdiPolyPolyDraw(  (HDC) Mode,
                                  (PPOINT) Point,
                                  (PULONG) Count,
                                   (ULONG) inPolygons,
                                           GdiPolyPolyRgn );
-*/
-   return (HRGN) NULL;
 }
 
 
diff --git a/reactos/subsystems/win32/win32k/win32k.rbuild b/reactos/subsystems/win32/win32k/win32k.rbuild
index cf532262f07..59f5f1a9b8c 100644
--- a/reactos/subsystems/win32/win32k/win32k.rbuild
+++ b/reactos/subsystems/win32/win32k/win32k.rbuild
@@ -144,6 +144,7 @@
 	</directory>
 	<directory name="objects">
 		<compilationunit name="objects.c">
+			<file>arc.c</file>
 			<file>bezier.c</file>
 			<file>bitmaps.c</file>
 			<file>brush.c</file>
diff --git a/reactos/tools/nci/w32ksvc.db b/reactos/tools/nci/w32ksvc.db
index 2b0452ab94a..908760f7294 100644
--- a/reactos/tools/nci/w32ksvc.db
+++ b/reactos/tools/nci/w32ksvc.db
@@ -6,6 +6,7 @@ NtGdiAlphaBlend				11
 NtGdiAngleArc				6
 NtGdiAnimatePalette			4
 NtGdiArc				9
+NtGdiArcInternal			10
 NtGdiArcTo				9
 NtGdiBeginPath				1
 NtGdiBitBlt				11
@@ -197,6 +198,7 @@ NtGdiPolyDraw				4
 NtGdiPolyline				3
 NtGdiPolylineTo				3
 NtGdiPolyPatBlt				5
+NtGdiPolyPolyDraw			5
 NtGdiPolyPolyline			4
 NtGdiPolyTextOut			3
 NtGdiPolygon				3