diff --git a/meta/classes-recipe/kernel-grub.bbclass b/meta/classes-recipe/kernel-grub.bbclass
index 2325e635e1..7c6abc5b4f 100644
--- a/meta/classes-recipe/kernel-grub.bbclass
+++ b/meta/classes-recipe/kernel-grub.bbclass
@@ -98,6 +98,7 @@ python __anonymous () {
 	fi
 '''
 
+    kname = d.getVar('KERNEL_PACKAGE_NAME') or "kernel"
     imagetypes = d.getVar('KERNEL_IMAGETYPES')
     imagetypes = re.sub(r'\.gz$', '', imagetypes)
 
@@ -105,7 +106,7 @@ python __anonymous () {
         typelower = type.lower()
         preinst_append = preinst.replace('KERNEL_IMAGETYPE', type)
         postinst_prepend = postinst.replace('KERNEL_IMAGETYPE', type)
-        d.setVar('pkg_preinst:kernel-image-' + typelower + ':append', preinst_append)
-        d.setVar('pkg_postinst:kernel-image-' + typelower + ':prepend', postinst_prepend)
+        d.setVar('pkg_preinst:%s-image-%s:append' % (kname, typelower), preinst_append)
+        d.setVar('pkg_postinst:%s-image-%s:prepend' % (kname, typelower), postinst_prepend)
 }