diff --git a/netbox/core/views.py b/netbox/core/views.py
index 1854e62c5..344e66c74 100644
--- a/netbox/core/views.py
+++ b/netbox/core/views.py
@@ -8,7 +8,7 @@ from django.conf import settings
 from django.contrib import messages
 from django.contrib.auth.mixins import UserPassesTestMixin
 from django.core.cache import cache
-from django.db import ProgrammingError, connection
+from django.db import DatabaseError, connection
 from django.http import Http404, HttpResponse, HttpResponseForbidden
 from django.shortcuts import get_object_or_404, redirect, render
 from django.urls import reverse
@@ -672,9 +672,9 @@ class SystemView(UserPassesTestMixin, View):
                 psql_version = psql_version.split('(')[0].strip()
                 cursor.execute("SELECT current_database()")
                 db_name = cursor.fetchone()[0]
-                cursor.execute(f"SELECT pg_size_pretty(pg_database_size('{db_name}'))")
+                cursor.execute("SELECT pg_size_pretty(pg_database_size(current_database()))")
                 db_size = cursor.fetchone()[0]
-        except (ProgrammingError, IndexError):
+        except (DatabaseError, IndexError):
             pass
         return {
             'netbox_release': settings.RELEASE,
@@ -731,7 +731,7 @@ class SystemView(UserPassesTestMixin, View):
                     'columns': columns_by_table[table_name],
                     'indexes': indexes_by_table.get(table_name, []),
                 })
-        except ProgrammingError:
+        except DatabaseError:
             pass
         return db_schema