diff --git a/lib/libpe/flags.ex b/lib/libpe/flags.ex
index 88becf8..9c983e1 100644
--- a/lib/libpe/flags.ex
+++ b/lib/libpe/flags.ex
@@ -35,7 +35,7 @@ defmodule LibPE.Flags do
       name when is_binary(value) ->
         case Enum.find(module.flags(), fn {ename, _, _} -> name == ename end) do
           {_, value, _} -> value
-          nil -> raise "Unknown #{module} flag: #{inspect name}"
+          nil -> raise "Unknown #{module} flag: #{inspect(name)}"
         end
     end
   end
diff --git a/lib/libpe/resource_table.ex b/lib/libpe/resource_table.ex
index eae3143..2c3d8a0 100644
--- a/lib/libpe/resource_table.ex
+++ b/lib/libpe/resource_table.ex
@@ -111,12 +111,30 @@ defmodule LibPE.ResourceTable do
     ```
 
   """
+  def set_resource(table, resource_type, entry_or_data, codepage \\ 0, language \\ 1033)
+
+  def set_resource(table = %ResourceTable{entries: entries}, resource_type, nil, _, _) do
+    type = LibPE.ResourceTypes.encode(resource_type)
+    if type == nil, do: raise("ResourceType #{resource_type} is unknown")
+
+    idx = Enum.find_index(entries, fn %DirEntry{name: name} -> type == name end)
+
+    entries =
+      if idx == nil do
+        entries
+      else
+        sorted_entries(%ResourceTable{table | entries: List.delete_at(entries, idx)})
+      end
+
+    %ResourceTable{table | entries: entries}
+  end
+
   def set_resource(
         table = %ResourceTable{entries: entries},
         resource_type,
         entry_or_data,
-        codepage \\ 0,
-        language \\ 1033
+        codepage,
+        language
       ) do
     type = LibPE.ResourceTypes.encode(resource_type)
     if type == nil, do: raise("ResourceType #{resource_type} is unknown")
@@ -502,13 +520,13 @@ defmodule LibPE.ResourceTable do
           IO.puts("#{dup(level + 2)} :#{String.pad_trailing(key, 20)} = #{inspect(value)}")
         end
 
-        # IO.puts("#{dup(level + 1)} Version Metadata =>")
-        # IO.puts("#{dup(level + 2)} :#{String.pad_trailing("str_encoding", 20)} = #{inspect(version_info.strings_encoding)}")
-        # IO.puts("#{dup(level + 2)} :#{String.pad_trailing("str_type", 20)} = #{inspect(version_info.strings_type)}")
-        # IO.puts("#{dup(level + 2)} :#{String.pad_trailing("var", 20)} = #{inspect(version_info.var)}")
-        # IO.puts("#{dup(level + 2)} :#{String.pad_trailing("var_type", 20)} = #{inspect(version_info.var_type)}")
-        # IO.puts("#{dup(level + 2)} :#{String.pad_trailing("type", 20)} = #{inspect(version_info.type)}")
-        # IO.puts("#{dup(level + 2)} :#{String.pad_trailing("tail", 20)} = #{inspect(version_info.tail)}")
+      # IO.puts("#{dup(level + 1)} Version Metadata =>")
+      # IO.puts("#{dup(level + 2)} :#{String.pad_trailing("str_encoding", 20)} = #{inspect(version_info.strings_encoding)}")
+      # IO.puts("#{dup(level + 2)} :#{String.pad_trailing("str_type", 20)} = #{inspect(version_info.strings_type)}")
+      # IO.puts("#{dup(level + 2)} :#{String.pad_trailing("var", 20)} = #{inspect(version_info.var)}")
+      # IO.puts("#{dup(level + 2)} :#{String.pad_trailing("var_type", 20)} = #{inspect(version_info.var_type)}")
+      # IO.puts("#{dup(level + 2)} :#{String.pad_trailing("type", 20)} = #{inspect(version_info.type)}")
+      # IO.puts("#{dup(level + 2)} :#{String.pad_trailing("tail", 20)} = #{inspect(version_info.tail)}")
 
       Keyword.get(opts, :values, false) ->
         value =
diff --git a/lib/libpe/version_info.ex b/lib/libpe/version_info.ex
index d978fb8..c495116 100644
--- a/lib/libpe/version_info.ex
+++ b/lib/libpe/version_info.ex
@@ -45,7 +45,7 @@ defmodule LibPE.VersionInfo do
       var: <<9, 4, 228, 4>>,
       var_type: 0,
       tail: "",
-      type: 0,
+      type: 0
     }
   end
 
diff --git a/lib/mix/tasks/update.ex b/lib/mix/tasks/update.ex
index c225874..1256c11 100644
--- a/lib/mix/tasks/update.ex
+++ b/lib/mix/tasks/update.ex
@@ -118,7 +118,9 @@ defmodule Mix.Tasks.Pe.Update do
   defp process_args(opts, ["--set-icon", filename | rest]) do
     case File.read(filename) do
       {:ok, data} ->
-        add_resource(opts, "RT_ICON", data)
+        opts
+        |> add_resource("RT_ICON", data)
+        |> drop_resource("RT_GROUP_ICON")
         |> process_args(rest)
 
       error ->
@@ -176,6 +178,10 @@ defmodule Mix.Tasks.Pe.Update do
     |> process_args(rest)
   end
 
+  defp drop_resource(opts, name) do
+    add_resource(opts, name, nil)
+  end
+
   defp add_resource(opts, name, data) do
     if not is_integer(name) and not LibPE.Flags.is_name(LibPE.ResourceTypes, name) do
       error("""