Index: trunk/psphot/src/psphotMosaicChip.c
===================================================================
--- trunk/psphot/src/psphotMosaicChip.c	(revision 12792)
+++ trunk/psphot/src/psphotMosaicChip.c	(revision 13900)
@@ -28,5 +28,5 @@
     psTrace("pmChipMosaic", 5, "mosaic chip %s to %s (xbin,ybin: %d,%d to %d,%d)\n",
             in->name, out->name, in->xBin, in->yBin, out->xBin, out->yBin);
-    status = pmChipMosaic(outChip, inChip, true);
+    status = pmChipMosaic(outChip, inChip, true, pmConfigMask("BLANK", config));
     return status;
 }