diff --git a/mysql-test/r/mysqldump.result b/mysql-test/r/mysqldump.result
index e8c971a41bc..1fa18482b9c 100644
--- a/mysql-test/r/mysqldump.result
+++ b/mysql-test/r/mysqldump.result
@@ -3573,6 +3573,28 @@ SELECT * FROM v1;
 1
 DROP VIEW v1;
 #
+# Bug #29788: mysqldump discards the NO_AUTO_VALUE_ON_ZERO value of
+#             the SQL_MODE variable after the dumping of triggers.
+#
+CREATE TABLE t1 (c1 INT);
+CREATE TRIGGER t1bd BEFORE DELETE ON t1 FOR EACH ROW BEGIN END;
+CREATE TABLE t2 (c1 INT NOT NULL AUTO_INCREMENT PRIMARY KEY);
+SET @TMP_SQL_MODE = @@SQL_MODE;
+SET SQL_MODE = 'NO_AUTO_VALUE_ON_ZERO';
+INSERT INTO t2 VALUES (0), (1), (2);
+SET SQL_MODE = @TMP_SQL_MODE;
+SELECT * FROM t2;
+c1
+0
+1
+2
+SELECT * FROM t2;
+c1
+0
+1
+2
+DROP TABLE t1,t2;
+#
 # End of 5.0 tests
 #
 drop table if exists t1;
diff --git a/mysql-test/t/mysqldump.test b/mysql-test/t/mysqldump.test
index 38d8a07fe48..4e8d3ae916e 100644
--- a/mysql-test/t/mysqldump.test
+++ b/mysql-test/t/mysqldump.test
@@ -1554,6 +1554,28 @@ DROP VIEW v1;
 SELECT * FROM v1;
 DROP VIEW v1;
 
+--echo #
+--echo # Bug #29788: mysqldump discards the NO_AUTO_VALUE_ON_ZERO value of
+--echo #             the SQL_MODE variable after the dumping of triggers.
+--echo #
+
+CREATE TABLE t1 (c1 INT);
+CREATE TRIGGER t1bd BEFORE DELETE ON t1 FOR EACH ROW BEGIN END;
+
+CREATE TABLE t2 (c1 INT NOT NULL AUTO_INCREMENT PRIMARY KEY);
+
+SET @TMP_SQL_MODE = @@SQL_MODE;
+SET SQL_MODE = 'NO_AUTO_VALUE_ON_ZERO';
+INSERT INTO t2 VALUES (0), (1), (2);
+SET SQL_MODE = @TMP_SQL_MODE;
+SELECT * FROM t2;
+
+--exec $MYSQL_DUMP --routines test >$MYSQLTEST_VARDIR/tmp/bug29788.sql
+--exec $MYSQL test < $MYSQLTEST_VARDIR/tmp/bug29788.sql
+SELECT * FROM t2;
+
+DROP TABLE t1,t2;
+
 --echo #
 --echo # End of 5.0 tests
 --echo #