Index: trunk/psLib/src/fits/psFitsScale.h
===================================================================
--- trunk/psLib/src/fits/psFitsScale.h	(revision 16197)
+++ trunk/psLib/src/fits/psFitsScale.h	(revision 17660)
@@ -10,4 +10,5 @@
 bool psFitsScaleDetermine(double *bscale, ///< Scaling, to return
                           double *bzero, ///< Zero point, to return
+                          long *blank,  ///< Blank value, to return
                           const psImage *image, ///< Image to scale
                           const psFits *fits ///< FITS options