diff --git a/OpenRA.Mods.RA/SupportPowers/SonarPulsePower.cs b/OpenRA.Mods.RA/SupportPowers/SonarPulsePower.cs
index 58de4d4882..f7ba92c686 100755
--- a/OpenRA.Mods.RA/SupportPowers/SonarPulsePower.cs
+++ b/OpenRA.Mods.RA/SupportPowers/SonarPulsePower.cs
@@ -31,7 +31,7 @@ namespace OpenRA.Mods.RA
 
 		public void ResolveOrder(Actor self, Order order)
 		{
-			if (!IsAvailable) return;
+			if (!IsReady) return;
 
 			if (order.OrderString == "SonarPulse")
 			{