diff --git a/.travis.yml b/.travis.yml
index 8e796494..2298cccb 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -33,6 +33,8 @@ env:
     - PG_VERSION=12 PG_BRANCH=REL_12_STABLE PTRACK_PATCH_PG_BRANCH=REL_12_STABLE
     - PG_VERSION=11 PG_BRANCH=REL_11_STABLE PTRACK_PATCH_PG_BRANCH=REL_11_STABLE
     - PG_VERSION=10 PG_BRANCH=REL_10_STABLE
+    - PG_VERSION=15 PG_BRANCH=REL_15_STABLE PTRACK_PATCH_PG_BRANCH=OFF MODE=backup.BackupTest.test_full_backup
+    - PG_VERSION=15 PG_BRANCH=REL_15_STABLE PTRACK_PATCH_PG_BRANCH=OFF MODE=backup.BackupTest.test_full_backup_stream
 #    - PG_VERSION=13 PG_BRANCH=REL_13_STABLE PTRACK_PATCH_PG_BRANCH=OFF MODE=archive
 #    - PG_VERSION=13 PG_BRANCH=REL_13_STABLE PTRACK_PATCH_PG_BRANCH=REL_13_STABLE MODE=backup
 #    - PG_VERSION=13 PG_BRANCH=REL_13_STABLE PTRACK_PATCH_PG_BRANCH=REL_13_STABLE MODE=catchup
diff --git a/tests/backup.py b/tests/backup.py
index fd5fd343..8bc4f172 100644
--- a/tests/backup.py
+++ b/tests/backup.py
@@ -13,7 +13,7 @@ module_name = 'backup'
 
 class BackupTest(ProbackupTest, unittest.TestCase):
 
-    def test_basic_full_backup(self):
+    def test_full_backup(self):
         """
         Just test full backup with at least two segments
         """
@@ -45,6 +45,38 @@ class BackupTest(ProbackupTest, unittest.TestCase):
         # Clean after yourself
         self.del_test_dir(module_name, fname)
 
+    def test_full_backup_stream(self):
+        """
+        Just test full backup with at least two segments in stream mode
+        """
+        fname = self.id().split('.')[3]
+        node = self.make_simple_node(
+            base_dir=os.path.join(module_name, fname, 'node'),
+            initdb_params=['--data-checksums'],
+            # we need to write a lot. Lets speedup a bit.
+            pg_options={"fsync": "off", "synchronous_commit": "off"})
+
+        backup_dir = os.path.join(self.tmp_path, module_name, fname, 'backup')
+        self.init_pb(backup_dir)
+        self.add_instance(backup_dir, 'node', node)
+        node.slow_start()
+
+        # Fill with data
+        # Have to use scale=100 to create second segment.
+        node.pgbench_init(scale=100, no_vacuum=True)
+
+        # FULL
+        backup_id = self.backup_node(backup_dir, 'node', node,
+                                     options=["--stream"])
+
+        out = self.validate_pb(backup_dir, 'node', backup_id)
+        self.assertIn(
+            "INFO: Backup {0} is valid".format(backup_id),
+            out)
+
+        # Clean after yourself
+        self.del_test_dir(module_name, fname)
+
     # @unittest.skip("skip")
     # @unittest.expectedFailure
     # PGPRO-707