diff --git a/Documentation/4.Compare_Dates.md b/Documentation/4.Compare_Dates.md
index da852ba8..4b047e46 100644
--- a/Documentation/4.Compare_Dates.md
+++ b/Documentation/4.Compare_Dates.md
@@ -161,7 +161,7 @@ takes 4 arguments:
 
 - `startDate`: the lower bound limit of the range
 - `endDate`: the upper bound limit of the range
-- `orEqualt`: true to also validate the equality
+- `orEqual`: true to also validate the equality
 - `granularity`: smallest unit that must, along with all larger units, be greater for the given dates
 
 Example: