diff --git a/acceptance/config_test.go b/acceptance/config_test.go
index 0f5bcc6a1..1b85980e7 100644
--- a/acceptance/config_test.go
+++ b/acceptance/config_test.go
@@ -69,7 +69,7 @@ type ServerStub struct {
 	Response testserver.Response
 
 	// Artificial delay in seconds to simulate slow responses.
-	DelaySeconds int
+	DelaySeconds float64
 }
 
 // FindConfigs finds all the config relevant for this test,