diff --git a/tests/waku_rln_relay/utils_onchain.nim b/tests/waku_rln_relay/utils_onchain.nim
index 1aee23d0b..6166d9f45 100644
--- a/tests/waku_rln_relay/utils_onchain.nim
+++ b/tests/waku_rln_relay/utils_onchain.nim
@@ -262,7 +262,7 @@ proc deployTestToken*(
     execCmdEx(fmt"""cd {submodulePath} && pnpm install""")
   trace "Executed pnpm install command", output = pnpmInstallOutput
   if pnpmInstallExitCode != 0:
-    return error("pnpm install command failed")
+    return error("pnpm install command failed" & pnpmInstallOutput)
 
   let (forgeBuildOutput, forgeBuildExitCode) =
     execCmdEx(fmt"""cd {submodulePath} && {forgePath} build""")