diff --git a/src/client/self_trace.ml b/src/client/self_trace.ml
index 72c92bfa..c5138bac 100644
--- a/src/client/self_trace.ml
+++ b/src/client/self_trace.ml
@@ -1,3 +1,4 @@
+open Opentelemetry_atomic
 open Common_
 
 let enabled = Atomic.make false