diff --git a/vncviewer/X11PixelBuffer.cxx b/vncviewer/X11PixelBuffer.cxx
index 3675eb5..c709984 100644
--- a/vncviewer/X11PixelBuffer.cxx
+++ b/vncviewer/X11PixelBuffer.cxx
@@ -94,7 +94,7 @@
 }
 
 X11PixelBuffer::X11PixelBuffer(int width, int height) :
-  PlatformPixelBuffer(display_pf(), width, height, NULL),
+  PlatformPixelBuffer(display_pf(), width, height, NULL, 0),
   shminfo(NULL), xim(NULL)
 {
   // Might not be open at this point
@@ -110,6 +110,7 @@
   }
 
   data = (rdr::U8*)xim->data;
+  stride = xim->bytes_per_line / (getPF().bpp/8);
 }
 
 
@@ -139,11 +140,6 @@
 }
 
 
-int X11PixelBuffer::getStride() const
-{
-  return xim->bytes_per_line / (getPF().bpp/8);
-}
-
 static bool caughtError;
 
 static int XShmAttachErrorHandler(Display *dpy, XErrorEvent *error)