diff --git a/openstackclient/tests/unit/volume/v2/test_volume_backup.py b/openstackclient/tests/unit/volume/v2/test_volume_backup.py
index aa0c050cdc..e16bdbb81f 100644
--- a/openstackclient/tests/unit/volume/v2/test_volume_backup.py
+++ b/openstackclient/tests/unit/volume/v2/test_volume_backup.py
@@ -120,7 +120,7 @@ class TestBackupCreate(TestBackup):
             name=self.new_backup.name,
             description=self.new_backup.description,
             force=True,
-            incremental=True,
+            is_incremental=True,
             snapshot_id=self.new_backup.snapshot_id,
         )
         self.assertEqual(self.columns, columns)
@@ -150,7 +150,7 @@ class TestBackupCreate(TestBackup):
             name=None,
             description=None,
             force=False,
-            incremental=False,
+            is_incremental=False,
             metadata={"foo": "bar", "wow": "much-cool"},
         )
         self.assertEqual(self.columns, columns)
@@ -199,7 +199,7 @@ class TestBackupCreate(TestBackup):
             name=None,
             description=None,
             force=False,
-            incremental=False,
+            is_incremental=False,
             availability_zone="my-az",
         )
         self.assertEqual(self.columns, columns)
@@ -247,7 +247,7 @@ class TestBackupCreate(TestBackup):
             name=None,
             description=self.new_backup.description,
             force=False,
-            incremental=False,
+            is_incremental=False,
         )
         self.assertEqual(self.columns, columns)
         self.assertEqual(self.data, data)
diff --git a/openstackclient/volume/v2/volume_backup.py b/openstackclient/volume/v2/volume_backup.py
index 7eed05a1db..a4e6ac85a3 100644
--- a/openstackclient/volume/v2/volume_backup.py
+++ b/openstackclient/volume/v2/volume_backup.py
@@ -173,7 +173,7 @@ class CreateVolumeBackup(command.ShowOne):
             name=parsed_args.name,
             description=parsed_args.description,
             force=parsed_args.force,
-            incremental=parsed_args.incremental,
+            is_incremental=parsed_args.incremental,
             **kwargs,
         )
         data = utils.get_dict_properties(backup, columns)
diff --git a/releasenotes/notes/fix-backup-incremental-d1c1e6886cf32256.yaml b/releasenotes/notes/fix-backup-incremental-d1c1e6886cf32256.yaml
new file mode 100644
index 0000000000..7942a6f293
--- /dev/null
+++ b/releasenotes/notes/fix-backup-incremental-d1c1e6886cf32256.yaml
@@ -0,0 +1,7 @@
+---
+fixes:
+  - |
+    Fixed issue with creating incremental volume backup.
+    Previously, ``incremental`` value was not passed in the
+    API request which is now included in the backup
+    create request.