diff --git a/modules/mmcif/pyext/src/util.py b/modules/mmcif/pyext/src/util.py
index edfd5b0ab6..f84b0a1a42 100644
--- a/modules/mmcif/pyext/src/util.py
+++ b/modules/mmcif/pyext/src/util.py
@@ -222,7 +222,7 @@ def _parse_sampcon(self, j, json_fname, ensemble):
                         raise ValueError("Cannot handle sel tuple")
                     asym = self._parse_sel_tuple(sel_tuple[0])
                     # Path is relative to that of the JSON file
-                    # With Python 2, covert mrc from unicode to str
+                    # With Python 2, convert mrc from unicode to str
                     full_mrc = IMP.get_relative_path(json_fname, str(mrc))
                     density = ihm.model.LocalizationDensity(
                         file=ihm.location.OutputFileLocation(