diff --git a/Tools/DialogueSystem/DialogueManager.cs b/Tools/DialogueSystem/DialogueManager.cs
index 60c4bfb..4b025a9 100644
--- a/Tools/DialogueSystem/DialogueManager.cs
+++ b/Tools/DialogueSystem/DialogueManager.cs
@@ -28,12 +28,11 @@ namespace SimpleTools.DialogueSystem {
 		}
 
 		public bool Dialogue(Dialogue dialogue) {
-			return Dialogue(dialogue, "");
+			return Dialogue(dialogue, string.Empty);
 		}
 
 		public bool Dialogue(Dialogue dialogue, params string[] sounds) {
-			if (sounds != null)
-				dialogueVertexAnimator.SetAudioSourceGroup(sounds);
+			dialogueVertexAnimator.SetAudioSourceGroup(sounds);
 
 			if (!talking) {
 				sentences.Clear();
diff --git a/Tools/DialogueSystem/DialogueVertexAnimator.cs b/Tools/DialogueSystem/DialogueVertexAnimator.cs
index e43ba41..bb20fc1 100644
--- a/Tools/DialogueSystem/DialogueVertexAnimator.cs
+++ b/Tools/DialogueSystem/DialogueVertexAnimator.cs
@@ -216,7 +216,7 @@ namespace SimpleTools.DialogueSystem {
 			if (Time.unscaledTime - lastDialogueSound > timeUntilNextDialogueSound) {
 				timeUntilNextDialogueSound = UnityEngine.Random.Range(0.02f, 0.08f);
 				lastDialogueSound = Time.unscaledTime;
-				if (audioSourceGroup != null)
+				if (audioSourceGroup[0] != string.Empty)
 					AudioManager.AudioManager.instance.PlayRandomSound(audioSourceGroup);
 			}
 		}
diff --git a/package.json b/package.json
index a25b86f..e8cfdfd 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "com.geri.simpletools",
-  "version": "1.2.0",
+  "version": "1.2.1",
   "displayName": "Simple Tools",
   "description": "This package contains simple tools to use in your project.",
   "unity": "2018.4",