diff --git a/tests/waku_rln_relay/test_rln_group_manager_onchain.nim b/tests/waku_rln_relay/test_rln_group_manager_onchain.nim
index 3d7be7220..50ac7b29d 100644
--- a/tests/waku_rln_relay/test_rln_group_manager_onchain.nim
+++ b/tests/waku_rln_relay/test_rln_group_manager_onchain.nim
@@ -333,7 +333,7 @@ suite "Onchain group manager":
     debug "epoch in bytes", epochHex = epoch.inHex()
 
     # generate proof
-    let validProofRes = manager.generateProof(
+    let validProofRes = await manager.generateProof(
       data = messageBytes, epoch = epoch, messageId = MessageId(1)
     )
 
@@ -367,9 +367,10 @@ suite "Onchain group manager":
     debug "epoch in bytes", epochHex = epoch.inHex()
 
     # generate proof
-    let validProof = manager.generateProof(
+    let proofResult = await manager.generateProof(
       data = messageBytes, epoch = epoch, messageId = MessageId(0)
-    ).valueOr:
+    )
+    let validProof = proofResult.valueOr:
       raiseAssert $error
 
     # validate the root (should be false)
@@ -410,9 +411,10 @@ suite "Onchain group manager":
     debug "epoch in bytes", epochHex = epoch.inHex()
 
     # generate proof
-    let validProof = manager.generateProof(
+    let proofResult = await manager.generateProof(
       data = messageBytes, epoch = epoch, messageId = MessageId(0)
-    ).valueOr:
+    )
+    let validProof = proofResult.valueOr:
       raiseAssert $error
 
     # verify the proof (should be true)
@@ -454,7 +456,7 @@ suite "Onchain group manager":
     debug "epoch in bytes", epochHex = epoch.inHex()
 
     # generate proof
-    let invalidProofRes = manager.generateProof(
+    let invalidProofRes = await manager.generateProof(
       data = messageBytes, epoch = epoch, messageId = MessageId(0)
     )