1 files changed, 2 insertions, 1 deletions
diff --git a/vespajlib/src/main/java/com/yahoo/tensor/functions/Slice.java b/vespajlib/src/main/java/com/yahoo/tensor/functions/Slice.java
index 4d3989b8782..850f804a180 100644
--- a/vespajlib/src/main/java/com/yahoo/tensor/functions/Slice.java
+++ b/vespajlib/src/main/java/com/yahoo/tensor/functions/Slice.java
@@ -10,6 +10,7 @@ import com.yahoo.tensor.evaluation.EvaluationContext;
 import com.yahoo.tensor.evaluation.Name;
 import com.yahoo.tensor.evaluation.TypeContext;
 
+import java.util.HashSet;
 import java.util.Iterator;
 import java.util.List;
 import java.util.Objects;
@@ -230,7 +231,7 @@ public class Slice<NAMETYPE extends Name> extends PrimitiveTensorFunction<NAMETY
 
         @Override
         public String toString() {
-            return toString(null);
+            return toString(ToStringContext.empty());
         }
 
         public String toString(ToStringContext context) {