diff --git a/exercises/practice/strain/.meta/strain-test.ys b/exercises/practice/strain/.meta/strain-test.ys
index 0f9cf59..1627391 100644
--- a/exercises/practice/strain/.meta/strain-test.ys
+++ b/exercises/practice/strain/.meta/strain-test.ys
@@ -6,7 +6,7 @@ use: strain
 
 test::
 - name: Keep on empty list returns empty list
-  code: 'keep([] "fn([x] true)")'
+  code: keep([] "fn([x] true)")
   want: []
   uuid: 26af8c32-ba6a-4eb3-aa0a-ebd8f136e003
 
diff --git a/exercises/practice/strain/strain-test.ys b/exercises/practice/strain/strain-test.ys
index d2774c0..45fbd6b 100644
--- a/exercises/practice/strain/strain-test.ys
+++ b/exercises/practice/strain/strain-test.ys
@@ -6,7 +6,7 @@ use: strain
 
 test::
 - name: Keep on empty list returns empty list
-  code: 'keep([] "fn([x] true)")'
+  code: keep([] "fn([x] true)")
   want: []
 
 - name: Keeps everything