Index: trunk/ppMerge/src/ppMergeMask.h
===================================================================
--- trunk/ppMerge/src/ppMergeMask.h	(revision 15937)
+++ trunk/ppMerge/src/ppMergeMask.h	(revision 15953)
@@ -37,5 +37,5 @@
     );
 
-bool ppMergeMaskGrowReadout (pmReadout *readout, psMaskType maskVal);
+bool ppMergeMaskGrowReadout (pmReadout *readout, psMaskType maskVal, int nPixels);
 
 bool ppMergeMaskReadoutStats(const pmReadout *readout,