diff --git a/handlers.go b/handlers.go
index d903d68b4eb98f0faa742b1361e500b7b3e0d6dd..2d9a93e694583abd39dc0f04957d3af11044aa5c 100644
--- a/handlers.go
+++ b/handlers.go
@@ -33,7 +33,6 @@ type TestResult struct {
 // TestRequest represents a client's request to test a batch of bridges.
 type TestRequest struct {
 	BridgeLines []string `json:"bridge_lines"`
-	Error       string   `json:"error,omitempty"`
 }
 
 // limiter implements a rate limiter.  We allow 1 request per second on average