diff --git a/geometry/@crystalSymmetry/crystalSymmetry.m b/geometry/@crystalSymmetry/crystalSymmetry.m
index 165fa33d0..4edbca7be 100644
--- a/geometry/@crystalSymmetry/crystalSymmetry.m
+++ b/geometry/@crystalSymmetry/crystalSymmetry.m
@@ -167,6 +167,7 @@
       % set axes, mineral name and color
       s.axes = axes;
       s.mineral = get_option(varargin,'mineral','');
+      s.mineral = strtrim(regexprep(s.mineral,char(0),' '));
       s.color = get_option(varargin,'color','');
       
       if check_option(varargin,'density')