diff --git a/tenant_schemas/postgresql_backend/introspection.py b/tenant_schemas/postgresql_backend/introspection.py
index 15df7db..10247a4 100644
--- a/tenant_schemas/postgresql_backend/introspection.py
+++ b/tenant_schemas/postgresql_backend/introspection.py
@@ -91,7 +91,7 @@ class DatabaseSchemaIntrospection(DatabaseIntrospection):
                 AND idx.indexrelid = c2.oid
                 AND c.relname = %s
                 AND c.relnamespace = n.oid
-                AND n.name = %s
+                AND n.nspname = %s
         """, [table_name, self.connection.schema_name])
         for index, columns, unique, primary in cursor.fetchall():
             if index not in constraints:
@@ -131,7 +131,7 @@ class DatabaseSchemaIntrospection(DatabaseIntrospection):
                 AND c1.relnamespace = n.oid
                 AND c2.relnamespace = n.oid
                 AND con.relnamespace = n.oid
-                AND n.name = '%s'
+                AND n.nspname = '%s'
                 AND c1.relname = %s
                 AND con.contype = 'f'""", [self.connection.schema_name, table_name])
         relations = {}
@@ -169,7 +169,7 @@ class DatabaseSchemaIntrospection(DatabaseIntrospection):
                 AND attr.attrelid = c.oid
                 AND attr.attnum = idx.indkey[0]
                 AND c.relnamespace = n.oid
-                AND n.name = %s
+                AND n.nspname = %s
                 AND c.relname = %s""", [self.connection.schema_name, table_name])
         indexes = {}
         for row in cursor.fetchall():