diff --git a/OpenRA.Mods.Common/Traits/Sound/AmbientSound.cs b/OpenRA.Mods.Common/Traits/Sound/AmbientSound.cs
index 24df531d2d..9de38d242d 100644
--- a/OpenRA.Mods.Common/Traits/Sound/AmbientSound.cs
+++ b/OpenRA.Mods.Common/Traits/Sound/AmbientSound.cs
@@ -40,7 +40,7 @@ namespace OpenRA.Mods.Common.Traits.Sound
 		public AmbientSound(Actor self, AmbientSoundInfo info)
 			: base(info)
 		{
-			delay = RandomDelay(self.World, info.Delay);
+			delay = Util.RandomDelay(self.World, info.Delay);
 			loop = Info.Interval.Length == 0 || (Info.Interval.Length == 1 && Info.Interval[0] == 0);
 		}
 
@@ -63,7 +63,7 @@ namespace OpenRA.Mods.Common.Traits.Sound
 			{
 				StartSound(self);
 				if (!loop)
-					delay = RandomDelay(self.World, Info.Interval);
+					delay = Util.RandomDelay(self.World, Info.Interval);
 			}
 		}
 
@@ -89,18 +89,7 @@ namespace OpenRA.Mods.Common.Traits.Sound
 			currentSound = null;
 		}
 
-		static int RandomDelay(World world, int[] range)
-		{
-			if (range.Length == 0)
-				return 0;
-
-			if (range.Length == 1)
-				return range[0];
-
-			return world.SharedRandom.Next(range[0], range[1]);
-		}
-
-		protected override void TraitEnabled(Actor self) { delay = RandomDelay(self.World, Info.Delay); }
+		protected override void TraitEnabled(Actor self) { delay = Util.RandomDelay(self.World, Info.Delay); }
 		protected override void TraitDisabled(Actor self) { StopSound(); }
 
 		void INotifyRemovedFromWorld.RemovedFromWorld(Actor self) { StopSound(); }
diff --git a/OpenRA.Mods.Common/Util.cs b/OpenRA.Mods.Common/Util.cs
index cbd10b5b0a..f2820bf75e 100644
--- a/OpenRA.Mods.Common/Util.cs
+++ b/OpenRA.Mods.Common/Util.cs
@@ -164,5 +164,16 @@ namespace OpenRA.Mods.Common
 				yield return p;
 			}
 		}
+
+		public static int RandomDelay(World world, int[] range)
+		{
+			if (range.Length == 0)
+				return 0;
+
+			if (range.Length == 1)
+				return range[0];
+
+			return world.SharedRandom.Next(range[0], range[1]);
+		}
 	}
 }