1 files changed, 5 insertions, 0 deletions

diff --git a/src/WixToolset.Core/CommandLine/CommandLineParser.cs b/src/WixToolset.Core/CommandLine/CommandLineParser.cs
index da0e979c..65aea1fc 100644
--- a/src/WixToolset.Core/CommandLine/CommandLineParser.cs
+++ b/src/WixToolset.Core/CommandLine/CommandLineParser.cs
@@ -323,6 +323,11 @@ namespace WixToolset.Core.CommandLine
                 }
             }
 
+            foreach (var extension in extensions)
+            {
+                extension.PostParse();
+            }
+
             return this;
         }