diff --git a/src/uncategorized/longSlaveDescription.tw b/src/uncategorized/longSlaveDescription.tw
index dc4d10ed8ec4ca6b71def1db09f5d9a103dcd74b..d4056b6899906e67a7fa4c6c1b9f1df6be1764b9 100644
--- a/src/uncategorized/longSlaveDescription.tw
+++ b/src/uncategorized/longSlaveDescription.tw
@@ -958,13 +958,13 @@ is
 		<<set _lover = getSlave($activeSlave.relationshipTarget)>>
 		<<if def _lover>>
 			<<set _relTerm = relativeTerm($activeSlave, _lover)>>
-			<<if def _relTerm>>
+			<<if _relTerm !== null>>
 				$He is in an <span class="lightgreen">incestuous relationship with $his _relTerm, <<= SlaveFullName(_lover)>>.</span>
 			<</if>>
 		<</if>>
 	<<elseif $activeSlave.relationship <= -2>>
 		<<set _relTerm = relativeTerm($activeSlave, $PC)>>
-		<<if def _relTerm>>
+		<<if _relTerm !== null>>
 			$He is in an <span class="lightgreen">incestuous relationship with $his _relTerm, you.</span>
 		<</if>>
 	<</if>>