Fix typo. (Thanks, David!)
diff --git a/docs/Theta/ThetaSetOpsCornerCases.md b/docs/Theta/ThetaSetOpsCornerCases.md
index f04a62a..9eccc8b 100644
--- a/docs/Theta/ThetaSetOpsCornerCases.md
+++ b/docs/Theta/ThetaSetOpsCornerCases.md
@@ -176,6 +176,6 @@
* The tests for the Theta Sketch can be found in the class *[org.apache.datasketches.theta.CornerCaseThetaSetOperationsTest](https://github.com/apache/datasketches-java/blob/master/src/main/java/org.apache.datasketches.theta.CornerCaseThetaSetOperationsTest.java)*
* The tests for the Tuple Sketch can be found in the class *[org.apache.datasketches.tuple.aninteger.CornerCaseTupleSetOperationsTest](https://github.com/apache/datasketches-java/blob/master/src/main/java/org.apache.datasketches.tuple.aninteger.CornerCaseTupleSetOperationsTest.java)*
-The details of how this mode is used in run-time code can be found in the class *[org.apache.datasketches.tuple.AnotB.java](https://github.com/apache/datasketches-java/blob/master/src/main/java/org.apache.datasketches.tuple.AnotB.java)*.
+The details of how this model is used in run-time code can be found in the class *[org.apache.datasketches.tuple.AnotB.java](https://github.com/apache/datasketches-java/blob/master/src/main/java/org.apache.datasketches.tuple.AnotB.java)*.
