diff --git a/geonode_mapstore_client/client/js/reducers/__tests__/gndownload-test.js b/geonode_mapstore_client/client/js/reducers/__tests__/gndownload-test.js
index 34b34b2612..edaf76e388 100644
--- a/geonode_mapstore_client/client/js/reducers/__tests__/gndownload-test.js
+++ b/geonode_mapstore_client/client/js/reducers/__tests__/gndownload-test.js
@@ -34,4 +34,11 @@ describe('gndownload reducer', () => {
             }
         });
     });
+    it('downloadMetaDataComplete does not mutate the previous state', () => {
+        const previousLinkState = { 1: true };
+        const state = { downloads: { ISO: previousLinkState, DublinCore: {} } };
+        gndownload(state, downloadMetaDataComplete('ISO', 1));
+        // a reducer must be pure: the previous state object must remain untouched
+        expect(previousLinkState).toEqual({ 1: true });
+    });
 });
diff --git a/geonode_mapstore_client/client/js/reducers/gndownload.js b/geonode_mapstore_client/client/js/reducers/gndownload.js
index 5883b0ec66..462106c8a1 100644
--- a/geonode_mapstore_client/client/js/reducers/gndownload.js
+++ b/geonode_mapstore_client/client/js/reducers/gndownload.js
@@ -31,17 +31,14 @@ function gnDownload(state = defaultState, action) {
         };
     }
     case DOWNLOAD_METADATA_COMPLETE: {
-        const newState = { ...state };
         const linkType = action?.link?.split(' ').join('');
-        const downloads = newState.downloads[linkType];
-        delete downloads[action.pk];
+        // omit the completed pk immutably so the previous state is not mutated
+        const { [action.pk]: removed, ...remaining } = state.downloads[linkType] || {};
         return {
-            ...newState,
+            ...state,
             downloads: {
-                ...newState.downloads,
-                [linkType]: {
-                    ...downloads
-                }
+                ...state.downloads,
+                [linkType]: remaining
             }
         };
     }