diff --git a/.gitignore b/.gitignore
index 5139d614ad..dcfe1c355d 100644
--- a/.gitignore
+++ b/.gitignore
@@ -9,3 +9,6 @@ npm-debug.log
 
 # test reports created by karma
 /karma-reports
+
+# ignore auto-generated component index
+/src/component-index.js