diff --git a/src/msw/bitmap.cpp b/src/msw/bitmap.cpp
index 3a3798dce3..ad7929de21 100644
--- a/src/msw/bitmap.cpp
+++ b/src/msw/bitmap.cpp
@@ -520,10 +520,6 @@ bool wxBitmap::DoCreate(int w, int h, int d, WXHDC hdc)
     else // create a DDB
 #endif
     {
-        if ( d == -1 )
-            d = wxDisplayDepth();
-
-        GetBitmapData()->m_depth = d;
 
 #ifndef __WXMICROWIN__
         if ( d > 0 )