diff --git a/plotter.py b/plotter.py
index bbfed0b..df9a782 100644
--- a/plotter.py
+++ b/plotter.py
@@ -72,9 +72,9 @@ class PlotRule(Rule):
         self.postproc.save = save
         return self.process_fn(arg, **kwargs)
 
-    def datafile(self, arg):
+    def datafile(self, name, arg):
         return Datafile(
-            name=self.description + "_" + arg,
+            name=name + "_" + arg,
             description=self.description + " ({})".format(arg),
         )
 
@@ -327,7 +327,7 @@ class Plotter(Aggregator, BaseProcessor):
                 save.close()
 
             # Save in astrophysix format
-            df = rule.datafile(arg)
+            df = rule.datafile(name, arg)
             df[filetype] = plot_filename
             if plot_info is not None:
                 df.plot_info = plot_info