diff --git a/src/SymbolicUtils.jl b/src/SymbolicUtils.jl
index 7cff2f1c4..286ba3bc1 100644
--- a/src/SymbolicUtils.jl
+++ b/src/SymbolicUtils.jl
@@ -20,7 +20,7 @@ import TermInterface: iscall, isexpr, issym, symtype, head, children,
                       operation, arguments, metadata, maketerm
 
 Base.@deprecate_binding istree iscall
-export istree, operation, arguments, similarterm
+export istree, operation, arguments, unsorted_arguments, similarterm
 # Sym, Term,
 # Add, Mul and Pow
 include("types.jl")