diff --git a/client/sql/20_table_augmentation.sql b/client/sql/20_table_augmentation.sql
index 5b0544b..3c24b85 100644
--- a/client/sql/20_table_augmentation.sql
+++ b/client/sql/20_table_augmentation.sql
@@ -127,7 +127,7 @@ RETURNS boolean AS $$
             )
 
         # Add index to cartodb_id
-        plpy.execute('CREATE UNIQUE INDEX {table_name}_pkey ON "{user_schema}".{table_name} (cartodb_id)'
+        plpy.execute('CREATE UNIQUE INDEX {temp_table_name}_pkey ON "{user_schema}".{temp_table_name} (cartodb_id)'
             .format(user_schema=user_schema, table_name=table_name)
             )