diff --git a/.editorconfig b/.editorconfig
index 543fe960b8..9e1052f1b7 100644
--- a/.editorconfig
+++ b/.editorconfig
@@ -983,6 +983,9 @@ dotnet_diagnostic.RCS1059.severity = warning
 # Remove empty 'finally' clause.
 dotnet_diagnostic.RCS1066.severity = warning
 
+# Simplify logical negation.
+dotnet_diagnostic.RCS1068.severity = warning
+
 # Remove empty namespace declaration.
 dotnet_diagnostic.RCS1072.severity = warning
 
diff --git a/OpenRA.Game/Support/VariableExpression.cs b/OpenRA.Game/Support/VariableExpression.cs
index 275f8d720a..08fed5dc98 100644
--- a/OpenRA.Game/Support/VariableExpression.cs
+++ b/OpenRA.Game/Support/VariableExpression.cs
@@ -676,7 +676,7 @@ namespace OpenRA.Support
 				else if (t.Closes != Grouping.None)
 				{
 					Token temp;
-					while (!((temp = s.Pop()).Opens != Grouping.None))
+					while ((temp = s.Pop()).Opens == Grouping.None)
 						yield return temp;
 				}
 				else if (t.OperandSides == Sides.None)
diff --git a/OpenRA.Mods.Common/Traits/BotModules/BotModuleLogic/MinelayerBotModule.cs b/OpenRA.Mods.Common/Traits/BotModules/BotModuleLogic/MinelayerBotModule.cs
index ddd9526656..be738f7d00 100644
--- a/OpenRA.Mods.Common/Traits/BotModules/BotModuleLogic/MinelayerBotModule.cs
+++ b/OpenRA.Mods.Common/Traits/BotModules/BotModuleLogic/MinelayerBotModule.cs
@@ -149,7 +149,7 @@ namespace OpenRA.Mods.Common.Traits
 						foreach (var minelayer in minelayers)
 						{
 							var cells = pathFinder.FindPathToTargetCell(minelayer.Actor, new[] { minelayer.Actor.Location }, enemy.Location, BlockedByActor.Immovable, laneBias: false);
-							if (cells != null && !(cells.Count == 0))
+							if (cells != null && cells.Count != 0)
 							{
 								AIUtils.BotDebug($"{player}: try find a location to lay mine.");
 								EnqueueConflictPosition(cells[cells.Count / 2]);
@@ -193,7 +193,7 @@ namespace OpenRA.Mods.Common.Traits
 				foreach (var minelayer in minelayers)
 				{
 					var cells = pathFinder.FindPathToTargetCell(minelayer.Actor, new[] { minelayer.Actor.Location }, minelayingPosition, BlockedByActor.Immovable, laneBias: false);
-					if (cells != null && !(cells.Count == 0))
+					if (cells != null && cells.Count != 0)
 					{
 						orderedActors.Add(minelayer.Actor);