diff --git a/micall/tests/test_merge_contigs.py b/micall/tests/test_find_maximum_overlap.py
similarity index 80%
rename from micall/tests/test_merge_contigs.py
rename to micall/tests/test_find_maximum_overlap.py
index 4f86dc24e..714c0eb70 100644
--- a/micall/tests/test_merge_contigs.py
+++ b/micall/tests/test_find_maximum_overlap.py
@@ -1,5 +1,5 @@
 import pytest
-import micall.utils.merge_contigs as merge_contigs
+from micall.utils.find_maximum_overlap import find_maximum_overlap
 
 
 @pytest.mark.parametrize(
@@ -21,7 +21,7 @@
 )
 def test_maximum_overlap_cases(left, right, expected):
     if isinstance(expected, int):
-        assert merge_contigs.find_maximum_overlap(left, right) == expected
+        assert find_maximum_overlap(left, right) == expected
     else:
         with pytest.raises(expected):
-            merge_contigs.find_maximum_overlap(left, right)
+            find_maximum_overlap(left, right)
diff --git a/micall/utils/merge_contigs.py b/micall/utils/find_maximum_overlap.py
similarity index 100%
rename from micall/utils/merge_contigs.py
rename to micall/utils/find_maximum_overlap.py