diff --git a/.octocov.yml b/.octocov.yml
index 52d4ff9bf..467998b51 100644
--- a/.octocov.yml
+++ b/.octocov.yml
@@ -7,6 +7,10 @@ coverage:
   # switches to line counting when it merges several itself.
   paths:
     - coverage.out
+  # Not code under test: tests/ holds the mocks and helpers, *_gen.go is generated.
+  exclude:
+    - 'tests/**'
+    - '**/*_gen.go'
 codeToTestRatio:
   # Needs the pull request's own source, which the comment workflow must not
   # check out: it holds a write token.