diff --git a/fslmaths.cc b/fslmaths.cc
index 1a9b753905c5610a4e992501c03013244f5f6235..94bbd8af62519f4084aa4c5c1ed097d5954a85d0 100755
--- a/fslmaths.cc
+++ b/fslmaths.cc
@@ -1270,7 +1270,7 @@ if (!separatenoise)
     inputVolume.setDisplayMaximumMinimum((float)inputVolume.max(),(float)inputVolume.min());
 
 
-  save_volume_datatype(inputVolume,string(argv[argc-1]),output_dt);
+  save_volume_dtype(inputVolume,string(argv[argc-1]),output_dt);
   return 0;
 }