Index: trunk/psphot/src/psphotMosaicChip.c
===================================================================
--- trunk/psphot/src/psphotMosaicChip.c	(revision 18712)
+++ trunk/psphot/src/psphotMosaicChip.c	(revision 21183)
@@ -25,5 +25,5 @@
     }
 
-    psMaskType blankMask = pmConfigMaskGet("BLANK", config);
+    psImageMaskType blankMask = pmConfigMaskGet("BLANK", config);
 
     // mosaic the chip, forcing a deep copy (resulting images are not subimages)