1 files changed, 3 insertions, 1 deletions

diff --git a/src/WixToolset.Extensibility/IExtensionCommandLine.cs b/src/WixToolset.Extensibility/IExtensionCommandLine.cs
index 5c6f578d..0cbf84d9 100644
--- a/src/WixToolset.Extensibility/IExtensionCommandLine.cs
+++ b/src/WixToolset.Extensibility/IExtensionCommandLine.cs
@@ -19,7 +19,9 @@ namespace WixToolset.Extensibility
 
         void PreParse(ICommandLineContext context);
 
-        bool TryParseArgument(IParseCommandLine parseCommandLine, string arg);
+        bool TryParseArgument(ICommandLineParser parser, string argument);
+
+        bool TryParseCommand(ICommandLineParser parser, out ICommandLineCommand command);
 
         void PostParse();
     }