diff --git a/src/protocol/ast.rs b/src/protocol/ast.rs
index 863c5e613323d01dc4eb9ea19b6e9e54f4cc8561..47e5960bf8ccb2cbcb5c595aafe2d6ec02c81623 100644
--- a/src/protocol/ast.rs
+++ b/src/protocol/ast.rs
@@ -640,7 +640,7 @@ impl ScopeNode {
     }
 }
 
-#[derive(Debug, Clone)]
+#[derive(Debug, Clone, PartialEq, Eq)]
 pub enum VariableKind {
     Parameter,      // in parameter list of function/component
     Local,          // declared in function/component body