diff --git a/.gitignore b/.gitignore
index b18d84c13ec..f3529f1c73f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -177,6 +177,16 @@ utils/get-lines.test.js
 utils/validate.js
 utils/validate.test.js
 
+### Old Generated files ###
+# These files are no longer generated by the client, but can
+# exist on older branches. Continuing to ignore them ensures they
+# are not erroneously committed by contributors (or Naomi) who
+# aren't as familiar with our codebase.
+config/superblock-order.js
+config/superblock-order.test.js
+utils/slugs.js
+utils/slugs.test.js
+
 ### vim ###
 # Swap
 [._]*.s[a-v][a-z]