diff --git a/db_compare.py b/db_compare.py
index 683e2037..bb29944d 100644
--- a/db_compare.py
+++ b/db_compare.py
@@ -327,7 +327,7 @@ def check_uloha():
 def check_tema():
 	old_query = """SELECT text_zadani, text_reseni, typ, c.rocnik_id AS rocnik_id
 	FROM seminar_problemy
-	INNER JOIN seminar_cisla as c ON c.id = cislo_zadani_id
+	INNER JOIN seminar_cisla AS c ON c.id = cislo_zadani_id
 	WHERE typ IN ('tema', 'serial')
 	ORDER BY id"""
 	new_query = """SELECT tema_typ, zad_text.na_web AS text_zadani, res_text.na_web AS text_reseni, rn.rocnik_id AS rocnik_id