diff --git a/addons/survey/static/src/js/survey.js b/addons/survey/static/src/js/survey.js
index 7b069a4908c..699f2990f16 100644
--- a/addons/survey/static/src/js/survey.js
+++ b/addons/survey/static/src/js/survey.js
@@ -94,7 +94,7 @@ $(document).ready(function () {
         },
         timeout: 5000,
         error: function(jqXHR, textStatus, errorThrown){ // failure of AJAX request
-            alert("Something went wrong while contacting survey server. Your answers have probably not been recorded. Try refreshing.\n" + errorThrown);
+            $('#AJAXErrorModal').modal('show');
         }
     });
 
@@ -105,5 +105,4 @@ $(document).ready(function () {
     });
 
     console.debug("[survey] Custom JS for survey loaded!");
-
 });
diff --git a/addons/survey/views/survey_templates.xml b/addons/survey/views/survey_templates.xml
index 971006e8cd3..fa57efa8f19 100644
--- a/addons/survey/views/survey_templates.xml
+++ b/addons/survey/views/survey_templates.xml
@@ -120,6 +120,21 @@
                 <button type="submit" t-if="last" class="btn btn-primary">Submit survey</button>
             </div>
         </form>
+
+        <!-- Modal used to display error message, i.c.o. ajax error -->
+        <div class="modal fade" id="AJAXErrorModal" role="dialog" aria-labelledby="AJAXErrorModal" aria-hidden="true" >
+            <div class="modal-dialog">
+                <div class="modal-content">
+                    <div class="modal-header">
+                        <button type="button" class="close" data-dismiss="modal" aria-hidden="true">&amp;times;</button>
+                        <h4 class="modal-title">A problem has occured</h4>
+                    </div>
+                    <div class="modal-body"><p>Something went wrong while contacting survey server. <strong class="text-danger">Your answers have probably not been recorded.</strong> Try refreshing.</p></div>
+                    <div class="modal-footer"><button type="button" class="btn btn-primary" data-dismiss="modal">Close</button></div>
+                </div>
+            </div>
+        </div>
+
     </template>
 
     <!-- Question widgets -->