diff --git a/server/src/double_labeled_graph.rs b/server/src/double_labeled_graph.rs
index 4171e51..d529c48 100644
--- a/server/src/double_labeled_graph.rs
+++ b/server/src/double_labeled_graph.rs
@@ -92,7 +92,7 @@ impl DoubleLabeledGraph {
             .iter()
             .enumerate()
             .filter(|(i, _)| node_indices.contains(i))
-            .filter(|(_, node)| [Var::TOP, Var::BOT].contains(&node.var()))
+            .filter(|(_, node)| ![Var::TOP, Var::BOT].contains(&node.var()))
             .map(|(i, &node)| (i, node.lo().value()))
             .map(|(i, v)| (i.to_string(), v.to_string()))
             .collect();
@@ -103,7 +103,7 @@ impl DoubleLabeledGraph {
             .iter()
             .enumerate()
             .filter(|(i, _)| node_indices.contains(i))
-            .filter(|(_, node)| [Var::TOP, Var::BOT].contains(&node.var()))
+            .filter(|(_, node)| ![Var::TOP, Var::BOT].contains(&node.var()))
             .map(|(i, &node)| (i, node.hi().value()))
             .map(|(i, v)| (i.to_string(), v.to_string()))
             .collect();