diff --git a/src/test/java/org/opentripplanner/apis/gtfs/PatternByServiceDatesFilterTest.java b/src/test/java/org/opentripplanner/apis/gtfs/PatternByServiceDatesFilterTest.java
index 09582d67d3c..7e0cae144ed 100644
--- a/src/test/java/org/opentripplanner/apis/gtfs/PatternByServiceDatesFilterTest.java
+++ b/src/test/java/org/opentripplanner/apis/gtfs/PatternByServiceDatesFilterTest.java
@@ -103,6 +103,7 @@ static List<Arguments> ranges() {
       Arguments.of(null, parse("2024-05-03"), NOT_REMOVED),
       Arguments.of(null, parse("2024-05-01"), NOT_REMOVED),
       Arguments.of(parse("2024-05-03"), null, NOT_REMOVED),
+      Arguments.of(parse("2024-05-01"), null, NOT_REMOVED),
       Arguments.of(parse("2024-05-02"), parse("2024-05-02"), REMOVED),
       Arguments.of(parse("2024-05-02"), parse("2024-05-03"), REMOVED),
       Arguments.of(parse("2025-01-01"), null, REMOVED),