diff --git a/lib/abi/event.ex b/lib/abi/event.ex
index 8c28356..807d8c7 100644
--- a/lib/abi/event.ex
+++ b/lib/abi/event.ex
@@ -91,7 +91,7 @@ defmodule ABI.Event do
 
   defp indexed_arg_values([{_, type, _} | rest_args], [topic | rest_topics], acc) do
     value =
-      if ABI.FunctionSelector.is_dynamic?(type) do
+      if ABI.FunctionSelector.dynamic?(type) do
         {bytes, _} = ABI.TypeDecoder.decode_bytes(topic, 32, :left)
 
         # This is explained in the docstring. The caller will almost certainly
diff --git a/lib/abi/function_selector.ex b/lib/abi/function_selector.ex
index 4c87e5c..65789ba 100644
--- a/lib/abi/function_selector.ex
+++ b/lib/abi/function_selector.ex
@@ -449,13 +449,13 @@ defmodule ABI.FunctionSelector do
   defp get_type(els), do: raise("Unsupported type: #{inspect(els)}")
 
   @doc false
-  @spec is_dynamic?(ABI.FunctionSelector.type()) :: boolean
-  def is_dynamic?(:bytes), do: true
-  def is_dynamic?(:string), do: true
-  def is_dynamic?({:array, _type}), do: true
-  def is_dynamic?({:array, type, len}) when len > 0, do: is_dynamic?(type)
-  def is_dynamic?({:tuple, types}), do: Enum.any?(types, &is_dynamic?/1)
-  def is_dynamic?(_), do: false
+  @spec dynamic?(ABI.FunctionSelector.type()) :: boolean
+  def dynamic?(:bytes), do: true
+  def dynamic?(:string), do: true
+  def dynamic?({:array, _type}), do: true
+  def dynamic?({:array, type, len}) when len > 0, do: dynamic?(type)
+  def dynamic?({:tuple, types}), do: Enum.any?(types, &dynamic?/1)
+  def dynamic?(_), do: false
 
   @doc false
   def from_params(params) when is_map(params) do
diff --git a/lib/abi/type_decoder.ex b/lib/abi/type_decoder.ex
index 4fb2d8b..edbcaae 100644
--- a/lib/abi/type_decoder.ex
+++ b/lib/abi/type_decoder.ex
@@ -184,7 +184,7 @@ defmodule ABI.TypeDecoder do
     {reversed_result, binary_rest} =
       Enum.reduce(types, {[], binary_data}, fn type, {acc, binary} ->
         {value, rest} =
-          if FunctionSelector.is_dynamic?(type) do
+          if FunctionSelector.dynamic?(type) do
             decode_type(type, binary, binary_data)
           else
             decode_type(type, binary)
@@ -262,7 +262,7 @@ defmodule ABI.TypeDecoder do
   defp decode_type({:tuple, types}, data) do
     {reversed_result, _, binary} =
       Enum.reduce(types, {[], [], data}, fn type, {acc, dynamic, binary} ->
-        if FunctionSelector.is_dynamic?(type) do
+        if FunctionSelector.dynamic?(type) do
           {val, binary} = decode_type(type, binary, data)
           {[val | acc], [type | dynamic], binary}
         else
@@ -323,7 +323,7 @@ defmodule ABI.TypeDecoder do
 
     {reversed_result, _, _binary} =
       Enum.reduce(types, {[], [], tuple_data}, fn type, {acc, dynamic, binary} ->
-        if FunctionSelector.is_dynamic?(type) do
+        if FunctionSelector.dynamic?(type) do
           {val, binary} = decode_type(type, binary, tuple_data)
           {[val | acc], [type | dynamic], binary}
         else
diff --git a/lib/abi/type_encoder.ex b/lib/abi/type_encoder.ex
index bbf2041..a105e7c 100644
--- a/lib/abi/type_encoder.ex
+++ b/lib/abi/type_encoder.ex
@@ -193,7 +193,7 @@ defmodule ABI.TypeEncoder do
     types = List.duplicate(type, size)
     result = do_encode(data, types, mode)
 
-    if FunctionSelector.is_dynamic?(type) do
+    if FunctionSelector.dynamic?(type) do
       data_bytes_size = byte_size(result)
 
       {[{:dynamic, data_bytes_size} | static_acc], [result | dynamic_acc]}
@@ -227,7 +227,7 @@ defmodule ABI.TypeEncoder do
        when is_list(list_parameters) do
     result = do_encode(list_parameters, types, :standard)
 
-    if FunctionSelector.is_dynamic?(type) do
+    if FunctionSelector.dynamic?(type) do
       data_bytes_size = byte_size(result)
 
       {[{:dynamic, data_bytes_size} | static_acc], [result | dynamic_acc]}