Index: trunk/magic/remove/src/warpedpixels.c
===================================================================
--- trunk/magic/remove/src/warpedpixels.c	(revision 20816)
+++ trunk/magic/remove/src/warpedpixels.c	(revision 21156)
@@ -41,5 +41,7 @@
         // write out the warped pixels
         psMetadata * header = psMetadataAlloc();
-        pmAstromWriteWCS(header, sf->inAstrom->fpa, sf->chip, 0.001);
+        if (sf->inAstrom->fpa->toSky->type != PS_PROJ_DIS) {
+            pmAstromWriteWCS(header, sf->inAstrom->fpa, sf->chip, 0.001);
+        }
         psFits *fits = psFitsOpen("warpedpixels.fits", "w");
 
@@ -76,5 +78,4 @@
     sf->astrom = streakSetAstrometry(sf->astrom, sf->stage, sf->inAstrom->fpa, sf->chip, false, NULL, 
         sf->warpedPixels->numCols, sf->warpedPixels->numRows);
-    
 
     // convert corners of skycell to sky coordinates