diff --git a/codex/slots/proofs/backends/asynccircoms.nim b/codex/slots/proofs/backends/asynccircoms.nim
index 32ac8df0..c451395d 100644
--- a/codex/slots/proofs/backends/asynccircoms.nim
+++ b/codex/slots/proofs/backends/asynccircoms.nim
@@ -7,6 +7,8 @@ import pkg/chronos
 import pkg/chronos/threadsync
 import pkg/questionable/results
 
+import ../../types
+
 import ./circomcompat
 
 const