diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index f904fc1..09cc155 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -22,6 +22,7 @@ The type is contained within the title and can be one of these types:
 * refactor: refactoring production code
 * test: adding tests, refactoring test; no production code change
 * chore: updating build tasks, package manager configs, etc; no production code change
+* etc: everything that does not correspond to other types
 
 ### The Subject
 Subjects should be no greater than 50 characters, should begin with a capital letter and do not end with a period.