diff --git a/prism/src/parser/ast/RelOp.java b/prism/src/parser/ast/RelOp.java
index dd6c5bcb..b38897cd 100644
--- a/prism/src/parser/ast/RelOp.java
+++ b/prism/src/parser/ast/RelOp.java
@@ -88,7 +88,7 @@ public enum RelOp
 		@Override
 		public boolean isMax()
 		{
-			return false;
+			return true;
 		}
 
 		@Override