diff --git a/vocabs/templates/vocabs/skosconceptscheme_detail.html b/vocabs/templates/vocabs/skosconceptscheme_detail.html
index fbc6b23..7264394 100644
--- a/vocabs/templates/vocabs/skosconceptscheme_detail.html
+++ b/vocabs/templates/vocabs/skosconceptscheme_detail.html
@@ -287,7 +287,11 @@ <h2 style="text-align: center;">
            </li>
            {% endfor %}
         </div>
+        
         </div>
+        {% if user.is_authenticated %}
+        <a href="{% url 'vocabs:skosconceptscheme_remove_keys' pk=object.id %}" class="btn btn-outline-danger" type="button">Remove legacy ids</a>
+        {% endif %}
         {% endif %}
         {% endif %}
         <!--change history ends here-->
diff --git a/vocabs/urls.py b/vocabs/urls.py
index 13ed9be..09d75f1 100644
--- a/vocabs/urls.py
+++ b/vocabs/urls.py
@@ -21,6 +21,9 @@
     path(
         'scheme/update/<int:pk>', views.SkosConceptSchemeUpdate.as_view(),
         name='skosconceptscheme_update'),
+    path(
+        'scheme/remove-keys/<int:pk>', views.delete_legacy_id_view,
+        name='skosconceptscheme_remove_keys'),
     path(
         'scheme/delete/<int:pk>',
         views.SkosConceptSchemeDelete.as_view(),
diff --git a/vocabs/utils.py b/vocabs/utils.py
index 5f020eb..c81c1fb 100644
--- a/vocabs/utils.py
+++ b/vocabs/utils.py
@@ -53,3 +53,10 @@ def handle_uploaded_file(file):
         for chunk in file.chunks():
             destination.write(chunk)
     return full_file_name
+
+
+def delete_legacy_ids(concept_scheme):
+    for x in concept_scheme.has_concepts.all():
+        x.legacy_id = ""
+        x.save()
+    return "done"
diff --git a/vocabs/views.py b/vocabs/views.py
index d19da20..deeccc4 100644
--- a/vocabs/views.py
+++ b/vocabs/views.py
@@ -1,5 +1,6 @@
 import time
 import datetime
+from django.shortcuts import get_object_or_404, redirect
 from guardian.shortcuts import get_objects_for_user
 from django.contrib.auth.decorators import login_required
 from reversion.models import Version
@@ -41,6 +42,7 @@
     SkosCollectionListFilter
 )
 from vocabs.rdf_utils import graph_construct_qs, RDF_FORMATS
+from vocabs.utils import delete_legacy_ids
 
 
 class BaseDetailView(DetailView):
@@ -124,6 +126,13 @@ def get_context_data(self, **kwargs):
         return context
 
 
+@login_required
+def delete_legacy_id_view(request, pk):
+    obj = get_object_or_404(SkosConceptScheme, pk=pk)
+    delete_legacy_ids(obj)
+    return redirect(obj)
+
+
 class SkosConceptSchemeCreate(BaseCreateView):
     model = SkosConceptScheme
     form_class = SkosConceptSchemeForm
diff --git a/vocabseditor/settings.py b/vocabseditor/settings.py
index 73ee2b8..6876c80 100644
--- a/vocabseditor/settings.py
+++ b/vocabseditor/settings.py
@@ -64,6 +64,8 @@
     'drf_yasg',
     # 'django_extensions',
 ]
+if DEBUG:
+    INSTALLED_APPS = INSTALLED_APPS + ['django_extensions']
 
 SWAGGER_SETTINGS = {
     'LOGOUT_URL': '/logout/',