diff --git a/oslo_utils/imageutils.py b/oslo_utils/imageutils.py
index 65292dc3..d764a7fb 100644
--- a/oslo_utils/imageutils.py
+++ b/oslo_utils/imageutils.py
@@ -63,7 +63,7 @@ class QemuImgInfo(object):
             self.cluster_size = details.get('cluster-size')
             self.disk_size = details.get('actual-size')
             self.snapshots = details.get('snapshots', [])
-            self.encrypted = details.get('encrypted')
+            self.encrypted = 'yes' if details.get('encrypted') else None
             self.format_specific = details.get('format-specific')
         else:
             if cmd_output is not None:
diff --git a/oslo_utils/tests/test_imageutils.py b/oslo_utils/tests/test_imageutils.py
index 63e0ee9c..6b25226a 100644
--- a/oslo_utils/tests/test_imageutils.py
+++ b/oslo_utils/tests/test_imageutils.py
@@ -238,7 +238,8 @@ class ImageUtilsJSONTestCase(test_base.BaseTestCase):
                        "cluster-size": 65536,
                        "format": "qcow2",
                        "actual-size": 13168640,
-                       "format-specific": {"data": {"foo": "bar"}}
+                       "format-specific": {"data": {"foo": "bar"}},
+                       "encrypted": true
                       }'''
         image_info = imageutils.QemuImgInfo(img_output, format='json')
         mock_deprecate.assert_not_called()
@@ -248,6 +249,7 @@ class ImageUtilsJSONTestCase(test_base.BaseTestCase):
         self.assertEqual('qcow2', image_info.file_format)
         self.assertEqual(13168640, image_info.disk_size)
         self.assertEqual("bar", image_info.format_specific["data"]["foo"])
+        self.assertEqual('yes', image_info.encrypted)
 
     @mock.patch("debtcollector.deprecate")
     def test_qemu_img_info_blank(self, mock_deprecate):
@@ -260,3 +262,4 @@ class ImageUtilsJSONTestCase(test_base.BaseTestCase):
         self.assertIsNone(image_info.file_format)
         self.assertIsNone(image_info.disk_size)
         self.assertIsNone(image_info.format_specific)
+        self.assertIsNone(image_info.encrypted)
diff --git a/releasenotes/notes/bug-1942682-ea95d54b2587b32f.yaml b/releasenotes/notes/bug-1942682-ea95d54b2587b32f.yaml
new file mode 100644
index 00000000..b21d6b04
--- /dev/null
+++ b/releasenotes/notes/bug-1942682-ea95d54b2587b32f.yaml
@@ -0,0 +1,6 @@
+---
+fixes:
+  - |
+    `bug #1942682 <https://bugs.launchpad.net/oslo.utils/+bug/1942682>`_:
+    Fix inconsistent value of `QemuImgInfo.encrypted`. Now the attribute is
+    always `'yes'` or `None` regardless of the format(`human` or `json`) used.