diff --git a/slither/solc_parsing/declarations/function.py b/slither/solc_parsing/declarations/function.py
index def68a8a3..5a29a9b50 100644
--- a/slither/solc_parsing/declarations/function.py
+++ b/slither/solc_parsing/declarations/function.py
@@ -774,6 +774,7 @@ class FunctionSolc(CallerContextExpression):
                             "nodeType": "Identifier",
                             "src": v["src"],
                             "name": v["name"],
+                            "referencedDeclaration": v["id"],
                             "typeDescriptions": {"typeString": v["typeDescriptions"]["typeString"]},
                         }
                         var_identifiers.append(identifier)