diff --git a/poc-agent/src/api/mod.rs b/poc-agent/src/api/mod.rs
index ef56701..db2c3ee 100644
--- a/poc-agent/src/api/mod.rs
+++ b/poc-agent/src/api/mod.rs
@@ -148,7 +148,7 @@ pub(crate) async fn send_and_check(
             } else {
                 "unknown"
             };
-            anyhow::anyhow!("{} ({}): {}", cause, url, e.without_url())
+            anyhow::anyhow!("{} ({}): {:?}", cause, url, e.without_url())
         })?;
 
     let status = response.status();