diff --git a/themes/MUG/invenio.cfg b/themes/MUG/invenio.cfg
index e137278..9119d2b 100644
--- a/themes/MUG/invenio.cfg
+++ b/themes/MUG/invenio.cfg
@@ -306,12 +306,15 @@ OVERRIDE_RESOURCE_OVERVIEW = True
 # ============================================================================
 # Invenio-override - Global Search Configuration
 # ============================================================================
-OVERRIDE_SHOW_PUBLICATIONS_SEARCH = True
-"""Enable or disable the publication global search feature."""
+OVERRIDE_SHOW_PUBLICATIONS_SEARCH = False
+"""Enable or disable the publication (marc21) global search feature."""
 
 OVERRIDE_SHOW_EDUCATIONAL_RESOURCES = False
 """Enable or disable the educational resources global search feature."""
 
+OVERRIDE_SHOW_RDM_SEARCH = True
+"""Show only Research Results (RDM) in search/overview components."""
+
 USER_DASHBOARD_MENU_OVERRIDES = {
       "uploads": {
         "text": _("Research Results"),
@@ -324,12 +327,8 @@ GLOBAL_SEARCH_SCHEMAS = {
         "schema": "rdm",
         "name_l10n": "Research Result",
     },
-    "marc21": {
-        "schema": "marc21",
-        "name_l10n": "Publication",
-    },
 }
-"""Mapping of original schemas for global search."""
+"""Mapping of original schemas for global search, here only RDM schema are shown."""
 
 # ============================================================================
 # Invenio-OAuthclient