diff --git a/src/Filters/Rules/Source/_MatchesTitelSubstringOf.py b/src/Filters/Rules/Source/_MatchesTitleSubstringOf.py
similarity index 100%
rename from src/Filters/Rules/Source/_MatchesTitelSubstringOf.py
rename to src/Filters/Rules/Source/_MatchesTitleSubstringOf.py
diff --git a/src/Filters/Rules/Source/__init__.py b/src/Filters/Rules/Source/__init__.py
index 7cfdfa600..bac4c398b 100644
--- a/src/Filters/Rules/Source/__init__.py
+++ b/src/Filters/Rules/Source/__init__.py
@@ -38,7 +38,7 @@ from _MatchesFilter import MatchesFilter
 from _HasSource import HasSource
 from _ChangedSince import ChangedSince
 from _HasRepository import HasRepository
-from _MatchesTitelSubstringOf import MatchesTitleSubstringOf
+from _MatchesTitleSubstringOf import MatchesTitleSubstringOf
 from _HasRepositoryCallNumberRef import HasRepositoryCallNumberRef
 from _MatchesRepositoryFilter import MatchesRepositoryFilter