diff --git a/src/Microsoft/SqlServer/Management/Smo/AvailabilityDatabaseBase.cs b/src/Microsoft/SqlServer/Management/Smo/AvailabilityDatabaseBase.cs
index 12e6381f..102b1dfa 100644
--- a/src/Microsoft/SqlServer/Management/Smo/AvailabilityDatabaseBase.cs
+++ b/src/Microsoft/SqlServer/Management/Smo/AvailabilityDatabaseBase.cs
@@ -99,7 +99,7 @@ public StringCollection Script(ScriptingOptions scriptingOptions)
         /// This action assumes the instance is already an availability replica in the group
         /// and the local copy is a locally restored copy of the database on the primary replica.
         /// </summary>
-        public void JoinAvailablityGroup()
+        public void JoinAvailabilityGroup()
         {
             this.CheckObjectState(!this.ExecutionManager.Recording); //make sure the object has been retrieved from the backend if we are going to execute the script
             string availabilityGroupName = this.Parent.Name;