diff --git a/pmb/config/__init__.py b/pmb/config/__init__.py
index 3c51c043..7412f2cb 100644
--- a/pmb/config/__init__.py
+++ b/pmb/config/__init__.py
@@ -32,7 +32,10 @@ pmaports_min_version = "7"
 # see migrate_work_folder()).
 work_version = 5
 
-# Minimum required version of postmarketos-ondev (pmbootstrap install --ondev)
+# Minimum required version of postmarketos-ondev (pmbootstrap install --ondev).
+# Try to support the current versions of all channels (edge, stable). When
+# bumping > 0.4.0, remove compat code in pmb/install/_install.py (search for
+# get_ondev_pkgver).
 ondev_min_version = "0.2.0"
 
 # Programs that pmbootstrap expects to be available from the host system. Keep
diff --git a/pmb/install/_install.py b/pmb/install/_install.py
index 3e9355df..bfbfba6f 100644
--- a/pmb/install/_install.py
+++ b/pmb/install/_install.py
@@ -645,8 +645,11 @@ def install_on_device_installer(args, step, steps):
 
     # Generate installer image
     size_reserve = round(os.path.getsize(img_path_dest) / 1024 / 1024) + 200
+    boot_label = "pmOS_inst_boot"
+    if pmb.parse.version.compare(get_ondev_pkgver(args), "0.4.0") == -1:
+        boot_label = "pmOS_boot"
     install_system_image(args, size_reserve, suffix_installer, step, steps,
-                         "pmOS_install", args.split, args.sdcard)
+                         boot_label, "pmOS_install", args.split, args.sdcard)
 
 
 def create_device_rootfs(args, step, steps):