diff --git a/src/qemu/qemu_namespace.c b/src/qemu/qemu_namespace.c
index 0f7351ad46..fb79460109 100644
--- a/src/qemu/qemu_namespace.c
+++ b/src/qemu/qemu_namespace.c
@@ -776,6 +776,11 @@ qemuDomainUnshareNamespace(virQEMUDriverConfig *cfg,
             goto cleanup;
     }
 
+    if (umount("/dev") < 0) {
+        virReportSystemError(errno, "%s", _("failed to umount devfs on /dev"));
+        return -1;
+    }
+
     if (virFileMoveMount(devPath, "/dev") < 0)
         goto cleanup;