---
 addons/res/res_config_mysql.c |    1 +
 1 file changed, 1 insertion(+)

Index: b/addons/res/res_config_mysql.c
===================================================================
--- a/addons/res/res_config_mysql.c
+++ b/addons/res/res_config_mysql.c
@@ -753,6 +753,7 @@ static int update2_mysql(const char *dat
 
 		ESCAPE_STRING(buf, newval);
 		ast_str_append(&sql, 0, "%s %s = '%s'", first ? "" : ",", newparam, ast_str_buffer(buf));
+		first = 0;
 
 		/* If the column length isn't long enough, give a chance to lengthen it. */
 		if (strncmp(column->type, "char", 4) == 0 || strncmp(column->type, "varchar", 7) == 0) {