diff --git a/test/helper.janet b/test/helper.janet
index 293b4ccc..aadf1084 100644
--- a/test/helper.janet
+++ b/test/helper.janet
@@ -1,7 +1,7 @@
 # Helper code for running tests
 
 # Turn on strict linting by default in test suite.
-#(put root-env *lint-warn* :strict)
+(put root-env *lint-warn* :strict)
 
 (var num-tests-passed 0)
 (var num-tests-run 0)