--- engines/mysql/mysql_cursor.c.orig	2010-04-08 10:56:13.000000000 +0200
+++ engines/mysql/mysql_cursor.c	2010-04-08 10:55:27.000000000 +0200
@@ -273,7 +273,7 @@
 	if (mysql_stmt_execute(e_cursor->statement)) 
 	{
 		g_sprintf (error_str, "Error occured: %s", mysql_stmt_error (e_cursor->statement));
-		GSQL_DEBUG (error_str);
+		GSQL_DEBUG ("%s", error_str);
 		gsql_message_add (workspace, GSQL_MESSAGE_ERROR, error_str);
 		mysql_stmt_reset (e_cursor->statement);