diff --git a/extensions/powershell/package.json b/extensions/powershell/package.json
index 47b6c419c6f..7448dd048a8 100644
--- a/extensions/powershell/package.json
+++ b/extensions/powershell/package.json
@@ -15,5 +15,8 @@
 			"scopeName": "source.powershell",
 			"path": "./syntaxes/PowershellSyntax.tmLanguage"
 		}]
+	},
+	"scripts": {
+		"update-grammar": "node ../../build/npm/update-grammar.js SublimeText/PowerShell Support/PowershellSyntax.tmLanguage ./syntaxes/powershell.tmLanguage.json"
 	}
 }
\ No newline at end of file