Index: trunk/ppMerge/src/ppMerge.h
===================================================================
--- trunk/ppMerge/src/ppMerge.h	(revision 17227)
+++ trunk/ppMerge/src/ppMerge.h	(revision 18166)
@@ -45,5 +45,5 @@
 
 // Read nominated input file
-bool ppMergeFileReadInput(const pmConfig *config, // Configuration
+bool ppMergeFileReadInput(pmConfig *config, // Configuration
                           pmReadout *readout, // Readout into which to read
                           int num,      // Number of file in sequence