diff --git a/lib/archethic/contracts/interpreter/ast_helper.ex b/lib/archethic/contracts/interpreter/ast_helper.ex
index b3485851e..b15bcdb1c 100644
--- a/lib/archethic/contracts/interpreter/ast_helper.ex
+++ b/lib/archethic/contracts/interpreter/ast_helper.ex
@@ -135,7 +135,7 @@ defmodule Archethic.Contracts.Interpreter.ASTHelper do
   """
   @spec is_function_call?(Macro.t()) :: boolean()
   def is_function_call?({{:atom, _}, _, list}) when is_list(list), do: true
-  def is_function_call?({{:., _, [{:__aliases__, _, [_]}, _]}, _, _}), do: true
+  def is_function_call?({{:., _, [{:__aliases__, _, _}, _]}, _, _}), do: true
   def is_function_call?(_), do: false
 
   @doc """
diff --git a/test/archethic/contracts/interpreter/action_interpreter_test.exs b/test/archethic/contracts/interpreter/action_interpreter_test.exs
index baf881649..dde7adcee 100644
--- a/test/archethic/contracts/interpreter/action_interpreter_test.exs
+++ b/test/archethic/contracts/interpreter/action_interpreter_test.exs
@@ -238,6 +238,21 @@ defmodule Archethic.Contracts.Interpreter.ActionInterpreterTest do
                |> ActionInterpreter.parse()
     end
 
+    test "should be able to use a function call as a parameter to a lib function" do
+      code = ~S"""
+      actions triggered_by: transaction do
+        count = List.size(Contract.get_calls())
+        Contract.set_content(count)
+      end
+      """
+
+      assert {:ok, :transaction, _} =
+               code
+               |> Interpreter.sanitize_code()
+               |> elem(1)
+               |> ActionInterpreter.parse()
+    end
+
     test "should not be able to use wrong types in contract functions" do
       code = ~S"""
       actions triggered_by: transaction do