diff --git a/src/sage/doctest/external.py b/src/sage/doctest/external.py
index 4628db45f5c..8d72fe28276 100644
--- a/src/sage/doctest/external.py
+++ b/src/sage/doctest/external.py
@@ -397,6 +397,7 @@ class AvailableSoftware():
          'magma',
          'maple',
          'mathematica',
+         'mathics',
          'matlab',
          'octave',
          'pdflatex',