diff --git a/src/proposals.rs b/src/proposals.rs
index c282d482..9976f3ce 100644
--- a/src/proposals.rs
+++ b/src/proposals.rs
@@ -191,9 +191,15 @@ async fn poll_approved_proposals(
 
                         break;
                     }
-                } else {
+                } else if err.code() == Code::Unknown {
                     error!("error querying proposal {}: {}", proposal_id, err);
+
                     continue;
+                } else {
+                    return Err(proposal_processing_error(format!(
+                        "error querying proposal {}: {}",
+                        proposal_id, err
+                    )));
                 }
             }
         };