diff --git a/pkg/http/server_test.go b/pkg/http/server_test.go
index a2b995a2..612ef9f7 100644
--- a/pkg/http/server_test.go
+++ b/pkg/http/server_test.go
@@ -140,7 +140,7 @@ var _ = Describe("Server", func() {
 					Handler:     handler,
 					BindAddress: "127.0.0.1:a",
 				},
-				expectedErr:        errors.New("error setting up listener: listen (tcp, 127.0.0.1:a) failed: listen tcp: lookup tcp/a: "),
+				expectedErr:        errors.New("error setting up listener: listen (tcp, 127.0.0.1:a) failed: listen tcp: "),
 				expectHTTPListener: false,
 				expectTLSListener:  false,
 			}),
@@ -153,7 +153,7 @@ var _ = Describe("Server", func() {
 						Cert: &certDataSource,
 					},
 				},
-				expectedErr:        errors.New("error setting up TLS listener: listen (127.0.0.1:a) failed: listen tcp: lookup tcp/a: "),
+				expectedErr:        errors.New("error setting up TLS listener: listen (127.0.0.1:a) failed: listen tcp: "),
 				expectHTTPListener: false,
 				expectTLSListener:  false,
 			}),