diff --git a/src/core/operations/DateTimeDelta.mjs b/src/core/operations/DateTimeDelta.mjs
index 585ee370..66949ace 100644
--- a/src/core/operations/DateTimeDelta.mjs
+++ b/src/core/operations/DateTimeDelta.mjs
@@ -32,7 +32,7 @@ function parseTimeString(timeString) {
 }
 
 /**
- * DateTime Delta operation
+ * DateTime Delta operation 
  */
 class DateTimeDelta extends Operation {