diff --git a/manila_ui/dashboards/utils.py b/manila_ui/dashboards/utils.py
index a1281c40..7d03908f 100644
--- a/manila_ui/dashboards/utils.py
+++ b/manila_ui/dashboards/utils.py
@@ -86,6 +86,7 @@ def metadata_to_str(metadata, meta_visible_limit=4, text_length_limit=25):
         if len(k) > text_length_limit:
             k_shortenned = k[:text_length_limit] + '...'
         v = metadata[k]
+        v = v if isinstance(v, str) else str(v)
         if len(v) > text_length_limit:
             v = v[:text_length_limit] + '...'
         meta.append("%s = %s" % (html_escape(k_shortenned), html_escape(v)))
diff --git a/releasenotes/notes/bug-2004165-fix-type-listing-when-rbac-enabled-c01f363dfa574b9b.yaml b/releasenotes/notes/bug-2004165-fix-type-listing-when-rbac-enabled-c01f363dfa574b9b.yaml
new file mode 100644
index 00000000..8d54d19f
--- /dev/null
+++ b/releasenotes/notes/bug-2004165-fix-type-listing-when-rbac-enabled-c01f363dfa574b9b.yaml
@@ -0,0 +1,6 @@
+---
+fixes:
+  - |
+    Fixed an issue while trying to load share types that had boolean extra
+    specs when RBAC was enabled. For more details, please refer to
+    `Launchpad bug <https://bugs.launchpad.net/manila-ui/+bug/2004165>`_