diff --git a/src/main/org/apache/tools/ant/taskdefs/defaults.properties b/src/main/org/apache/tools/ant/taskdefs/defaults.properties
index 8088e790b..8dd403ad8 100644
--- a/src/main/org/apache/tools/ant/taskdefs/defaults.properties
+++ b/src/main/org/apache/tools/ant/taskdefs/defaults.properties
@@ -109,6 +109,7 @@ vajimport=org.apache.tools.ant.taskdefs.optional.ide.VAJImport
 telnet=org.apache.tools.ant.taskdefs.optional.net.TelnetTask
 csc=org.apache.tools.ant.taskdefs.optional.dotnet.CSharp
 ilasm=org.apache.tools.ant.taskdefs.optional.dotnet.Ilasm
+WsdlToDotnet=org.apache.tools.ant.taskdefs.optional.dotnet.WsdlToDotnet
 stylebook=org.apache.tools.ant.taskdefs.optional.StyleBook
 test=org.apache.tools.ant.taskdefs.optional.Test
 pvcs=org.apache.tools.ant.taskdefs.optional.pvcs.Pvcs