diff --git a/.idea/workspace.xml b/.idea/workspace.xml
deleted file mode 100644
index 0d1e2d4f..00000000
--- a/.idea/workspace.xml
+++ /dev/null
@@ -1,68 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="AutoImportSettings">
-    <option name="autoReloadType" value="SELECTIVE" />
-  </component>
-  <component name="ChangeListManager">
-    <list default="true" id="e30ed6ce-d1cb-4447-8025-154490c2483f" name="Changes" comment="" />
-    <option name="SHOW_DIALOG" value="false" />
-    <option name="HIGHLIGHT_CONFLICTS" value="true" />
-    <option name="HIGHLIGHT_NON_ACTIVE_CHANGELIST" value="false" />
-    <option name="LAST_RESOLUTION" value="IGNORE" />
-  </component>
-  <component name="ElmWorkspace">
-    <elmProjects />
-    <settings elmCompilerPath="/usr/local/bin/elm" elmFormatPath="null" elmTestPath="null" isElmFormatOnSaveEnabled="false" />
-  </component>
-  <component name="Git.Settings">
-    <option name="RECENT_GIT_ROOT_PATH" value="$PROJECT_DIR$" />
-  </component>
-  <component name="ProjectColorInfo">{
-  &quot;customColor&quot;: &quot;&quot;,
-  &quot;associatedIndex&quot;: 6
-}</component>
-  <component name="ProjectId" id="2oNkOIs3OYf70ALvmN1oOMnr4UZ" />
-  <component name="ProjectViewState">
-    <option name="hideEmptyMiddlePackages" value="true" />
-    <option name="showLibraryContents" value="true" />
-  </component>
-  <component name="PropertiesComponent">{
-  &quot;keyToString&quot;: {
-    &quot;RunOnceActivity.ShowReadmeOnStart&quot;: &quot;true&quot;,
-    &quot;git-widget-placeholder&quot;: &quot;develop&quot;,
-    &quot;node.js.detected.package.eslint&quot;: &quot;true&quot;,
-    &quot;node.js.detected.package.tslint&quot;: &quot;true&quot;,
-    &quot;node.js.selected.package.eslint&quot;: &quot;(autodetect)&quot;,
-    &quot;node.js.selected.package.tslint&quot;: &quot;(autodetect)&quot;,
-    &quot;nodejs_package_manager_path&quot;: &quot;npm&quot;,
-    &quot;org.elm.workspace.PROJECT_DISCOVERY&quot;: &quot;true&quot;,
-    &quot;vue.rearranger.settings.migration&quot;: &quot;true&quot;
-  }
-}</component>
-  <component name="SharedIndexes">
-    <attachedChunks>
-      <set>
-        <option value="bundled-js-predefined-d6986cc7102b-5c90d61e3bab-JavaScript-PY-242.23726.102" />
-        <option value="bundled-python-sdk-5e1850174b45-399fe30bd8c1-com.jetbrains.pycharm.pro.sharedIndexes.bundled-PY-242.23726.102" />
-      </set>
-    </attachedChunks>
-  </component>
-  <component name="SpellCheckerSettings" RuntimeDictionaries="0" Folders="0" CustomDictionaries="0" DefaultDictionary="application-level" UseSingleDictionary="true" transferred="true" />
-  <component name="TaskManager">
-    <task active="true" id="Default" summary="Default task">
-      <changelist id="e30ed6ce-d1cb-4447-8025-154490c2483f" name="Changes" comment="" />
-      <created>1730717388220</created>
-      <option name="number" value="Default" />
-      <option name="presentableId" value="Default" />
-      <updated>1730717388220</updated>
-      <workItem from="1730717389572" duration="2608000" />
-      <workItem from="1731325272483" duration="563000" />
-      <workItem from="1732528330348" duration="7477000" />
-      <workItem from="1732609228349" duration="865000" />
-    </task>
-    <servers />
-  </component>
-  <component name="TypeScriptGeneratedFilesManager">
-    <option name="version" value="3" />
-  </component>
-</project>
\ No newline at end of file
diff --git a/gsrest/service/txs_service.py b/gsrest/service/txs_service.py
index c9beb2bd..9d07af5c 100644
--- a/gsrest/service/txs_service.py
+++ b/gsrest/service/txs_service.py
@@ -135,7 +135,7 @@ def io_from_rows(currency, values, key, rates, include_io,
                         index=idx if include_io_index else None))
         elif include_nonstandard_io:
             results.append(
-                TxValue(address=None,
+                TxValue(address=[],
                         value=convert_value(currency, i.value, rates),
                         index=idx if include_io_index else None))
     return results