diff --git a/src/sage/doctest/external.py b/src/sage/doctest/external.py
index ceec70230d0..aa158c76671 100644
--- a/src/sage/doctest/external.py
+++ b/src/sage/doctest/external.py
@@ -356,7 +356,9 @@ def external_features():
     import sage.features.ffmpeg
     yield from sage.features.ffmpeg.all_features()
     import sage.features.interfaces
-    yield from sage.features.interfaces.all_features()
+    for feature in sage.features.interfaces.all_features():
+        if feature.name != 'mathics':
+            yield feature
     from sage.features.mip_backends import CPLEX, Gurobi
     yield CPLEX()
     yield Gurobi()
@@ -398,7 +400,6 @@ class AvailableSoftware():
          'magma',
          'maple',
          'mathematica',
-         'mathics',
          'matlab',
          'octave',
          'pdflatex',