diff --git a/.gitignore b/.gitignore
index 29ef47482..bd6eaaaf0 100644
--- a/.gitignore
+++ b/.gitignore
@@ -12,3 +12,4 @@ build
 .vscode
 package-lock.json
 .system-test-run/
+__pycache__
diff --git a/synth.metadata b/synth.metadata
index 9e26dfeeb..d162ebef5 100644
--- a/synth.metadata
+++ b/synth.metadata
@@ -1 +1,12 @@
-{}
\ No newline at end of file
+{
+  "updateTime": "2018-12-04T17:54:44.365406Z",
+  "sources": [
+    {
+      "template": {
+        "name": "node_library",
+        "origin": "synthtool.gcp",
+        "version": "2018.11.30"
+      }
+    }
+  ]
+}
\ No newline at end of file
diff --git a/synth.py b/synth.py
index 35c5bbaae..4faf164b1 100644
--- a/synth.py
+++ b/synth.py
@@ -19,4 +19,4 @@
 logging.basicConfig(level=logging.DEBUG)
 common_templates = gcp.CommonTemplates()
 templates = common_templates.node_library()
-s.copy(templates)
+s.copy(templates, excludes=["LICENSE"])