diff --git a/eo/src/utils/eoGnuplot1DSnapshot.h b/eo/src/utils/eoGnuplot1DSnapshot.h
index c08b6fb9..f004a56e 100644
--- a/eo/src/utils/eoGnuplot1DSnapshot.h
+++ b/eo/src/utils/eoGnuplot1DSnapshot.h
@@ -107,6 +107,8 @@ class eoGnuplot1DSnapshot: public eoFileSnapshot, public eoGnuplot
       gnuplotCommand(os.str());
   }
 
+  void setPointSize(unsigned  _pointSize)
+  { pointSize = _pointSize; }
 
 protected: