Index: trunk/ppImage/src/ppImageOptions.h
===================================================================
--- trunk/ppImage/src/ppImageOptions.h	(revision 13593)
+++ trunk/ppImage/src/ppImageOptions.h	(revision 13901)
@@ -9,4 +9,5 @@
     psMaskType badMask;                 // Mask value to give bad pixels
     psMaskType flatMask;                // Mask value to give bad flat pixels
+    psMaskType blankMask;               // Mask value to give blank pixels
 
     bool doBias;                        // Bias subtraction