diff --git a/src/component/1d/FooterBanner.tsx b/src/component/1d/FooterBanner.tsx
index 3254e48ad..9abf605c6 100644
--- a/src/component/1d/FooterBanner.tsx
+++ b/src/component/1d/FooterBanner.tsx
@@ -1,7 +1,7 @@
 /** @jsxImportSource @emotion/react */
 import { css } from '@emotion/react';
 import { xFindClosestIndex } from 'ml-spectra-processing';
-import { Spectrum1D } from 'nmr-load-save';
+import { ActiveSpectrum, Spectrum1D } from 'nmr-load-save';
 import { memo } from 'react';
 import { BsCursor } from 'react-icons/bs';
 import { IoPulseSharp } from 'react-icons/io5';
@@ -14,7 +14,6 @@ import { useScaleChecked } from '../context/ScaleContext';
 import { useActiveSpectrum } from '../hooks/useActiveSpectrum';
 import { useFormatNumberByNucleus } from '../hooks/useFormatNumberByNucleus';
 import useSpectrum from '../hooks/useSpectrum';
-import { ActiveSpectrum } from '../reducer/Reducer';
 
 const styles = css`
   display: flex;
diff --git a/src/component/modal/MultipletAnalysisModal.tsx b/src/component/modal/MultipletAnalysisModal.tsx
index a072fa200..99e6aa03c 100644
--- a/src/component/modal/MultipletAnalysisModal.tsx
+++ b/src/component/modal/MultipletAnalysisModal.tsx
@@ -2,13 +2,12 @@
 import { css } from '@emotion/react';
 import { xGetFromToIndex, xyToXYObject } from 'ml-spectra-processing';
 import { analyseMultiplet } from 'multiplet-analysis';
-import { Spectrum } from 'nmr-load-save';
+import { ActiveSpectrum, Spectrum } from 'nmr-load-save';
 import { useState, useEffect } from 'react';
 import { Plot, LineSeries, Axis } from 'react-plot';
 import { Modal } from 'react-science/ui';
 
 import { isSpectrum2D } from '../../data/data2d/Spectrum2D';
-import { ActiveSpectrum } from '../reducer/Reducer';
 
 const styles = css`
   button:focus {
diff --git a/src/component/panels/SpectrumsPanel/SpectraPanelHeader.tsx b/src/component/panels/SpectrumsPanel/SpectraPanelHeader.tsx
index 7b30e596f..f00e17236 100644
--- a/src/component/panels/SpectrumsPanel/SpectraPanelHeader.tsx
+++ b/src/component/panels/SpectrumsPanel/SpectraPanelHeader.tsx
@@ -1,5 +1,5 @@
 import { SvgNmrSameTop, SvgNmrResetScale } from 'cheminfo-font';
-import { Spectrum, Spectrum2D } from 'nmr-load-save';
+import { ActiveSpectrum, Spectrum, Spectrum2D } from 'nmr-load-save';
 import { memo, useCallback } from 'react';
 import {
   FaCreativeCommonsSamplingPlus,
@@ -15,7 +15,7 @@ import { useAlert } from '../../elements/popup/Alert';
 import { useModal } from '../../elements/popup/Modal';
 import { useActiveSpectra } from '../../hooks/useActiveSpectra';
 import useSpectrum from '../../hooks/useSpectrum';
-import { ActiveSpectrum, DisplayerMode } from '../../reducer/Reducer';
+import { DisplayerMode } from '../../reducer/Reducer';
 import { getSpectraByNucleus } from '../../utility/getSpectraByNucleus';
 import DefaultPanelHeader from '../header/DefaultPanelHeader';
 import { SpectraAutomaticPickingButton } from '../header/SpectraAutomaticPickingButton';
diff --git a/src/component/panels/SpectrumsPanel/SpectraTable.tsx b/src/component/panels/SpectrumsPanel/SpectraTable.tsx
index c51e6826a..93e2a310b 100644
--- a/src/component/panels/SpectrumsPanel/SpectraTable.tsx
+++ b/src/component/panels/SpectrumsPanel/SpectraTable.tsx
@@ -1,5 +1,6 @@
 import lodashGet from 'lodash/get';
 import {
+  ActiveSpectrum,
   JpathTableColumn,
   PredefinedSpectraColumn,
   PredefinedTableColumn,
@@ -18,7 +19,6 @@ import ReactTable, { Column } from '../../elements/ReactTable/ReactTable';
 import { useAlert } from '../../elements/popup/Alert';
 import { usePanelPreferences } from '../../hooks/usePanelPreferences';
 import ExportAsJcampModal from '../../modal/ExportAsJcampModal';
-import { ActiveSpectrum } from '../../reducer/Reducer';
 
 import ColorIndicator from './base/ColorIndicator';
 import ShowHideSpectrumButton, {
diff --git a/src/component/panels/SpectrumsPanel/SpectrumsTabs.tsx b/src/component/panels/SpectrumsPanel/SpectrumsTabs.tsx
index 257c5f746..2349f5364 100644
--- a/src/component/panels/SpectrumsPanel/SpectrumsTabs.tsx
+++ b/src/component/panels/SpectrumsPanel/SpectrumsTabs.tsx
@@ -1,6 +1,6 @@
 /** @jsxImportSource @emotion/react */
 import { css } from '@emotion/react';
-import { Spectrum } from 'nmr-load-save';
+import { ActiveSpectrum, Spectrum } from 'nmr-load-save';
 import { useState, useMemo, memo, useCallback } from 'react';
 
 import { useChartData } from '../../context/ChartContext';
@@ -9,7 +9,6 @@ import { getModifiers } from '../../context/KeyModifierContext';
 import IsotopesViewer from '../../elements/IsotopesViewer';
 import Tab from '../../elements/Tab/Tab';
 import Tabs from '../../elements/Tab/Tabs';
-import { ActiveSpectrum } from '../../reducer/Reducer';
 import groupByInfoKey from '../../utility/GroupByInfoKey';
 
 import { SpectraTable } from './SpectraTable';
diff --git a/src/component/panels/SummaryPanel/utilities/Utilities.ts b/src/component/panels/SummaryPanel/utilities/Utilities.ts
index 5dc1b3f0a..6d92fc9bc 100644
--- a/src/component/panels/SummaryPanel/utilities/Utilities.ts
+++ b/src/component/panels/SummaryPanel/utilities/Utilities.ts
@@ -11,7 +11,7 @@ import {
   Correlation,
   Link,
 } from 'nmr-correlation';
-import { Spectrum2D, Spectrum } from 'nmr-load-save';
+import { Spectrum2D, Spectrum, ActiveSpectrum } from 'nmr-load-save';
 
 import DefaultPathLengths from '../../../../data/constants/DefaultPathLengths';
 import {
@@ -19,7 +19,7 @@ import {
   findSpectrum,
 } from '../../../../data/utilities/FindUtilities';
 import isDefaultPathLength from '../../../modal/editZone/validation/isDefaultPathLength';
-import { ActiveSpectrum, DisplayerMode } from '../../../reducer/Reducer';
+import { DisplayerMode } from '../../../reducer/Reducer';
 import { ErrorColors } from '../CorrelationTable/Constants';
 
 function getAtomType(nucleus: string): string {
diff --git a/src/component/reducer/Reducer.ts b/src/component/reducer/Reducer.ts
index 1560d9fea..7fe280e94 100644
--- a/src/component/reducer/Reducer.ts
+++ b/src/component/reducer/Reducer.ts
@@ -31,12 +31,6 @@ import * as ToolsActions from './actions/ToolsActions';
 import * as ZonesActions from './actions/ZonesActions';
 import { ZoomHistory } from './helper/ZoomHistoryManager';
 
-export interface ActiveSpectrum {
-  id: string;
-  index: number;
-  selected: boolean;
-}
-
 export type DisplayerMode = '1D' | '2D';
 
 export interface Pivot {
diff --git a/src/component/reducer/actions/FiltersActions.ts b/src/component/reducer/actions/FiltersActions.ts
index cd490bcc8..f7ec3828e 100644
--- a/src/component/reducer/actions/FiltersActions.ts
+++ b/src/component/reducer/actions/FiltersActions.ts
@@ -2,7 +2,12 @@ import { v4 } from '@lukeed/uuid';
 import { NmrData2DFt } from 'cheminfo-types';
 import { current, Draft } from 'immer';
 import { xFindClosestIndex } from 'ml-spectra-processing';
-import { Spectrum, Spectrum1D, Spectrum2D } from 'nmr-load-save';
+import {
+  ActiveSpectrum,
+  Spectrum,
+  Spectrum1D,
+  Spectrum2D,
+} from 'nmr-load-save';
 import {
   Filters,
   FiltersManager,
@@ -20,12 +25,7 @@ import { get2DXScale, get2DYScale } from '../../2d/utilities/scale';
 import { options as Tools } from '../../toolbar/ToolTypes';
 import { getSpectraByNucleus } from '../../utility/getSpectraByNucleus';
 import nucleusToString from '../../utility/nucleusToString';
-import {
-  ActiveSpectrum,
-  getInitialState,
-  State,
-  TraceDirection,
-} from '../Reducer';
+import { getInitialState, State, TraceDirection } from '../Reducer';
 import zoomHistoryManager from '../helper/ZoomHistoryManager';
 import { getActiveSpectrum } from '../helper/getActiveSpectrum';
 import getRange from '../helper/getRange';