diff --git a/.gitignore b/.gitignore
index 3248746..345e0c0 100644
--- a/.gitignore
+++ b/.gitignore
@@ -16,6 +16,9 @@ target
 # rustc will dump stack traces when hitting an internal compiler error to PWD
 rustc-ice-*.txt
 
+# Derived knowledge-graph artifacts generated by graphify
+graphify-out/
+
 # RustRover
 #  JetBrains specific template is maintained in a separate JetBrains.gitignore that can
 #  be found at https://github.com/github/gitignore/blob/main/Global/JetBrains.gitignore