diff --git a/www/common/common-util.js b/www/common/common-util.js
index c48bf809f..aa939e5d1 100644
--- a/www/common/common-util.js
+++ b/www/common/common-util.js
@@ -867,6 +867,12 @@ const factory = (NaclUtil) => {
     };
     /* End of code copied from saferphore */
 
+    Util.requirePromise = function(modulePath){
+        return new Promise((resolve) => {
+            require([modulePath], resolve);
+        });
+    }
+
     return Util;
 };
 
diff --git a/www/common/drive-ui.js b/www/common/drive-ui.js
index e397e0a84..944b8919d 100644
--- a/www/common/drive-ui.js
+++ b/www/common/drive-ui.js
@@ -1652,15 +1652,15 @@ define([
                 if (($(e.target).offset().top + $(e.target).height()) > ($(window).height()-$menu.height())) {
                     if ( $(e.target).offset().top < $menu.height()) {
                         menuPositionTop = 0;
-                        
+
                     } else {
-                        menuPositionTop = ($(e.target).offset().top - $menu.height()); 
-                    } 
+                        menuPositionTop = ($(e.target).offset().top - $menu.height());
+                    }
                 } else {
                     menuPositionTop = $(e.target).offset().top + $(e.target).outerHeight();
                 }
                 if (($(e.target).offset().left + $(e.target).width()) < $menu.width()) {
-                    menuPositionLeft = $(e.target).offset().left; 
+                    menuPositionLeft = $(e.target).offset().left;
                 } else {
                     menuPositionLeft = $(e.target).offset().left - ($menu.width() - $(e.target).width()) + 10;
                 }
@@ -4841,7 +4841,7 @@ define([
             });
         };
 
-        var openInApp = function (paths, app) {
+        var openInApp = async function (paths, app) {
             var p = paths[0];
             var el = manager.find(p.path);
             var path = currentPath;
@@ -4854,6 +4854,13 @@ define([
                 password: _metadata.password,
                 channel: _metadata.channel,
             };
+
+            const ext = _simpleData.title.split('.').pop();
+            const brokenFormats = await Util.requirePromise('/common/onlyoffice/broken-formats.js');
+            if (brokenFormats.brokenImportFormats.includes(ext)) {
+                await UI.alertPromise(Messages.oo_unstableMigrationWarning);
+            }
+
             openIn(app, path, APP.team, _simpleData);
         };
 
@@ -5642,4 +5649,3 @@ define([
         logError: logError
     };
 });
-
diff --git a/www/common/onlyoffice/broken-formats.js b/www/common/onlyoffice/broken-formats.js
new file mode 100644
index 000000000..34c5a1024
--- /dev/null
+++ b/www/common/onlyoffice/broken-formats.js
@@ -0,0 +1,9 @@
+
+// SPDX-FileCopyrightText: 2023 XWiki CryptPad Team <contact@cryptpad.org> and contributors
+//
+// SPDX-License-Identifier: AGPL-3.0-or-later
+
+define({
+    brokenExportFormats: ['odt', 'odp'],
+    brokenImportFormats: ['odp'],
+});
diff --git a/www/common/onlyoffice/inner.js b/www/common/onlyoffice/inner.js
index d490358c4..cb1c1d2dc 100644
--- a/www/common/onlyoffice/inner.js
+++ b/www/common/onlyoffice/inner.js
@@ -63,8 +63,6 @@ define([
     var PENDING_TIMEOUT = 30000;
     const HISTORY_KEEPER_INDEX_USER = 1;
     const READ_ONLY_INDEX_USER = 2;
-    const BROKEN_EXPORT_FORMATS = ['odt', 'odp'];
-    const BROKEN_IMPORT_FORMATS = ['odp'];
     //var READONLY_REFRESH_TO = 15000;
 
     var debug = function (x, type) {
@@ -2241,7 +2239,8 @@ Uncaught TypeError: Cannot read property 'calculatedType' of null
                     return;
                 }
 
-                if (BROKEN_EXPORT_FORMATS.includes(ext)) {
+                const brokenFormats = await Util.requirePromise('/common/onlyoffice/broken-formats.js');
+                if (brokenFormats.brokenExportFormats.includes(ext)) {
                     await UI.alertPromise(Messages.oo_unstableMigrationWarning);
                 }
 
@@ -2367,7 +2366,8 @@ Uncaught TypeError: Cannot read property 'calculatedType' of null
             debug("Filename");
             debug(filename);
 
-            if (BROKEN_IMPORT_FORMATS.includes(ext)) {
+            const brokenFormats = await Util.requirePromise('/common/onlyoffice/broken-formats.js');
+            if (brokenFormats.brokenImportFormats.includes(ext)) {
                 await UI.alertPromise(Messages.oo_unstableMigrationWarning);
             }