diff --git a/db_compare.py b/db_compare.py
index 02e01f63..728a38d5 100755
--- a/db_compare.py
+++ b/db_compare.py
@@ -333,13 +333,15 @@ def check_problem_common():
 
 	# Opravovatelé
 	old_query = "SELECT id, opravovatel_id FROM seminar_problemy"
-	new_query = "SELECT problem_id, opravovatel_id FROM seminar_problemy_opravovatele"
+	new_query = "SELECT problem_id, organizator_id FROM seminar_problemy_opravovatele"
 
 	# Simple cursors
 	#oldcur = oldconn.cursor()
-	old_results = oldcur.execute(old_query).fetchall()
+	oldcur.execute(old_query)
+	old_results = oldcur.fetchall()
 	#newcur = newconn.cursor()
-	new_results = newcur.execute(new_query).fetchall()
+	newcur.execute(new_query)
+	new_results = newcur.fetchall()
 
 	for oldr in old_results:
 		if oldr not in new_results: