diff --git a/.pre-commit-hooks.yaml b/.pre-commit-hooks.yaml
index 7d609b3..0ab0417 100644
--- a/.pre-commit-hooks.yaml
+++ b/.pre-commit-hooks.yaml
@@ -51,7 +51,7 @@
     description: checks terraform files for parseable IAM syntax.
     entry: check-iam
     language: python
-    types: [tf]
+    files: \.tf$
 -   id: check-shebang-scripts-are-executable
     name: check that scripts with shebangs are executable
     description: ensures that (non-binary) files with a shebang are executable.