diff --git a/tests/codex/testslots.nim b/tests/codex/testslots.nim
index f37e0927..da748199 100644
--- a/tests/codex/testslots.nim
+++ b/tests/codex/testslots.nim
@@ -1,5 +1,6 @@
 import ./slots/testslotbuilder
 import ./slots/testsampler
 import ./slots/testconverters
+import ./slots/testbackends
 
 {.warning[UnusedImport]: off.}