diff --git a/calc_grad_perc_dev.cc b/calc_grad_perc_dev.cc
index 5cd738bce8fda58af3f33d9447a31dec5780532b..11b019cfa8111992d6be1a11e68e41bf72a904e1 100644
--- a/calc_grad_perc_dev.cc
+++ b/calc_grad_perc_dev.cc
@@ -1,8 +1,8 @@
 /*  calc_grad_perc_dev.cc
 
-    Mark Jenkinson, FMRIB Image Analysis Group
+    Mark Jenkinson and Matthew Webster, FMRIB Image Analysis Group
 
-    Copyright (C) 2012 University of Oxford  */
+    Copyright (C) 2012-2014 University of Oxford  */
 
 /*  CCOPYRIGHT  */
 
@@ -85,7 +85,7 @@ int do_work(int argc, char* argv[])
   zpd[0]*=100.0/fw.xdim();
   zpd[1]*=100.0/fw.ydim();
   zpd[2]*=100.0/fw.zdim();
-  string bname=fslbasename(outname.value());
+  string bname=make_basename(outname.value());
   save_volume4D(xpd,bname+"_x");
   save_volume4D(ypd,bname+"_y");
   save_volume4D(zpd,bname+"_z");