diff --git a/reactos/dll/win32/gdi32/gdi32.def b/reactos/dll/win32/gdi32/gdi32.def
index 2f897b5fdb3..6366cede053 100644
--- a/reactos/dll/win32/gdi32/gdi32.def
+++ b/reactos/dll/win32/gdi32/gdi32.def
@@ -532,12 +532,12 @@ SetAbortProc@8
 SetArcDirection@8
 SetBitmapAttributes@8
 SetBitmapBits@12=NtGdiSetBitmapBits@12
-SetBitmapDimensionEx@16=NtGdiSetBitmapDimensionEx@16
+SetBitmapDimensionEx@16=NtGdiSetBitmapDimension@16
 SetBkColor@8=NtGdiSetBkColor@8
 SetBkMode@8=NtGdiSetBkMode@8
 SetBoundsRect@12
 SetBrushAttributes@8
-SetBrushOrgEx@16=NtGdiSetBrushOrgEx@16
+SetBrushOrgEx@16=NtGdiSetBrushOrg@16
 SetColorAdjustment@8
 SetColorSpace@8
 SetDCBrushColor@8
diff --git a/reactos/include/reactos/win32k/ntgdibad.h b/reactos/include/reactos/win32k/ntgdibad.h
index 386510aa4f6..34632abb1b5 100644
--- a/reactos/include/reactos/win32k/ntgdibad.h
+++ b/reactos/include/reactos/win32k/ntgdibad.h
@@ -621,30 +621,12 @@ NtGdiSelectPalette (
 	BOOL		ForceBackground
 	);
 
-/* Use NtGdiSetBitmapDimension. */
-BOOL
-STDCALL
-NtGdiSetBitmapDimensionEx (
-	HBITMAP	hBitmap,
-	INT	Width,
-	INT	Height,
-	LPSIZE	Size
-	);
-
 /* Needs to be done in user-mode, using shared GDI Object Attributes. */
 COLORREF STDCALL NtGdiSetBkColor (HDC hDC, COLORREF Color);
 
 /* Needs to be done in user-mode, using shared GDI Object Attributes. */
 INT STDCALL  NtGdiSetBkMode(HDC  hDC, INT  backgroundMode);
 
-/* Use NtGdiSetBrushOrg. */
-BOOL STDCALL
-NtGdiSetBrushOrgEx(
-   HDC hDC,
-   INT XOrg,
-   INT YOrg,
-   LPPOINT Point);
-
 /* Use NtGdiDoPalette with GdiPalSetColorTable, TRUE. */
 UINT
 STDCALL
diff --git a/reactos/subsystems/win32/win32k/objects/bitmaps.c b/reactos/subsystems/win32/win32k/objects/bitmaps.c
index f34980be77c..0a86004dd00 100644
--- a/reactos/subsystems/win32/win32k/objects/bitmaps.c
+++ b/reactos/subsystems/win32/win32k/objects/bitmaps.c
@@ -1075,7 +1075,7 @@ NtGdiSetBitmapBits(
 }
 
 BOOL STDCALL
-NtGdiSetBitmapDimensionEx(
+NtGdiSetBitmapDimension(
 	HBITMAP  hBitmap,
 	INT  Width,
 	INT  Height,
diff --git a/reactos/subsystems/win32/win32k/objects/brush.c b/reactos/subsystems/win32/win32k/objects/brush.c
index c1a063806a3..67e62704d05 100644
--- a/reactos/subsystems/win32/win32k/objects/brush.c
+++ b/reactos/subsystems/win32/win32k/objects/brush.c
@@ -694,9 +694,9 @@ NtGdiCreateSolidBrush(COLORREF Color,
 }
 
 /*
- * NtGdiSetBrushOrgEx
+ * NtGdiSetBrushOrg
  *
- * The NtGdiSetBrushOrgEx function sets the brush origin that GDI assigns to
+ * The NtGdiSetBrushOrg function sets the brush origin that GDI assigns to
  * the next brush an application selects into the specified device context.
  *
  * Status
@@ -704,7 +704,7 @@ NtGdiCreateSolidBrush(COLORREF Color,
  */
 
 BOOL STDCALL
-NtGdiSetBrushOrgEx(HDC hDC, INT XOrg, INT YOrg, LPPOINT Point)
+NtGdiSetBrushOrg(HDC hDC, INT XOrg, INT YOrg, LPPOINT Point)
 {
    PDC dc = DC_LockDc(hDC);
    if (dc == NULL)
diff --git a/reactos/subsystems/win32/win32k/w32ksvc.db b/reactos/subsystems/win32/win32k/w32ksvc.db
index 5ca144211a3..5604d85a643 100644
--- a/reactos/subsystems/win32/win32k/w32ksvc.db
+++ b/reactos/subsystems/win32/win32k/w32ksvc.db
@@ -270,10 +270,10 @@ NtGdiSelectClipPath                              2
 # NtGdiSelectPen                                   2
 # NtGdiSetBitmapAttributes                         2
 NtGdiSetBitmapBits                               3
-# NtGdiSetBitmapDimension                          4
+NtGdiSetBitmapDimension                          4
 NtGdiSetBoundsRect                               3
 # NtGdiSetBrushAttributes                          2
-# NtGdiSetBrushOrg                                 4
+NtGdiSetBrushOrg                                 4
 NtGdiSetColorAdjustment                          2
 NtGdiSetColorSpace                               2
 NtGdiSetDeviceGammaRamp                          2
@@ -694,10 +694,8 @@ NtUserValidateHandleSecure              1
 #ReactOS specify syscall 
 NtGdiSelectObject                       2
 NtGdiSelectPalette                      3
-NtGdiSetBitmapDimensionEx               4
 NtGdiSetBkColor                         2
 NtGdiSetBkMode                          2
-NtGdiSetBrushOrgEx                      4
 NtGdiSetDIBColorTable                   4
 NtGdiSetDIBits                          7
 NtGdiSetDIBitsToDevice                  12