diff --git a/lib/drizzle.py b/lib/drizzle.py
index <HASH>..<HASH> 100644
--- a/lib/drizzle.py
+++ b/lib/drizzle.py
@@ -445,7 +445,7 @@ def run_blot(imageObjectList,output_wcs,paramDict,wcsmap=wcs_functions.WCSMap):
             else:
                 # Use user provided mapping function
                 wmap = wcsmap(chip.wcs,output_wcs.wcs)
-                mapping = wmap.backward
+                mapping = wmap.forward
 
             t = arrdriz.tblot(
                 _insci, _outsci,xmin,xmax,ymin,ymax,
Changed the default mapping to use the forward() method of WCSMap in 'blot' to get the correct transformations.  The overall exposure time scaling of data, though, still needs to be verified, but the geometry is at least handled correctly now. WJH


git-svn-id: <URL>