diff --git a/src/main/java/conottle/Conottle.java b/src/main/java/conottle/Conottle.java
index 53dfb3d..558495d 100644
--- a/src/main/java/conottle/Conottle.java
+++ b/src/main/java/conottle/Conottle.java
@@ -72,14 +72,12 @@ private static int requireNonNegativeOrThrow(int value) {
     }
 
     @Override
-    @NonNull
-    public Future<Void> execute(@NonNull Runnable command, @NonNull Object clientId) {
+    public @NonNull Future<Void> execute(@NonNull Runnable command, @NonNull Object clientId) {
         return submit(Executors.callable(command, null), clientId);
     }
 
     @Override
-    @NonNull
-    public <V> Future<V> submit(@NonNull Callable<V> task, @NonNull Object clientId) {
+    public <V> @NonNull Future<V> submit(@NonNull Callable<V> task, @NonNull Object clientId) {
         CompletableFutureHolder<V> taskCompletableFutureHolder = new CompletableFutureHolder<>();
         activeThrottlingExecutors.compute(clientId, (k, presentExecutor) -> {
             SingleClientThrottlingTaskExecutor executor =