diff --git a/simulator-http/src/main/java/de/dentrassi/hono/simulator/http/Device.java b/simulator-http/src/main/java/de/dentrassi/hono/simulator/http/Device.java
index 5125f97..6591b5f 100644
--- a/simulator-http/src/main/java/de/dentrassi/hono/simulator/http/Device.java
+++ b/simulator-http/src/main/java/de/dentrassi/hono/simulator/http/Device.java
@@ -76,7 +76,7 @@ public Device(final Vertx vertx, final Supplier<HttpRequest<?>> requestProvider,
     }
 
     public void start() {
-        final var initialDelay = JITTER.nextInt((int) config.getPeriod().toMillis());
+        final var initialDelay = JITTER.nextInt((int) config.getPeriod().toMillis()) + 1;
         schedule(initialDelay);
     }