diff --git a/src/main/java/de/dhbwstuttgart/typeinference/unify/model/UnifyPair.java b/src/main/java/de/dhbwstuttgart/typeinference/unify/model/UnifyPair.java
index 34069374..5df521cb 100644
--- a/src/main/java/de/dhbwstuttgart/typeinference/unify/model/UnifyPair.java
+++ b/src/main/java/de/dhbwstuttgart/typeinference/unify/model/UnifyPair.java
@@ -94,6 +94,7 @@ public class UnifyPair {
 		substitution = uni;
 		basePair = base;
 		this.location = location;
+		this.fBounded = fBounded;
 
 		// Caching hashcode
 		hashCode = 17 + 31 * lhs.hashCode() + 31 * rhs.hashCode() + 31 * pairOp.hashCode();