diff --git a/20-grub.install b/20-grub.install
index afc706d..d9d1d1d 100755
--- a/20-grub.install
+++ b/20-grub.install
@@ -32,6 +32,7 @@ mkbls() {
     local debugname=""
     local debugid=""
     local flavor=""
+    local devicetree_entry=""
 
     if [[ "$kernelver" == *\+* ]] ; then
         local flavor=-"${kernelver##*+}"
@@ -41,6 +42,12 @@ mkbls() {
         fi
     fi
 
+    # Define devicetree_entry if the user defined GRUB_DEVICETREE
+    # in /etc/default/grub, otherwise leave it empty
+    if [ -n "$GRUB_DEVICETREE" ] ; then
+        local devicetree_entry="devicetree /dtb-${kernelver}/$GRUB_DEVICETREE"
+    fi
+
     cat <<EOF
 title ${NAME} (${kernelver}) ${VERSION}${debugname}
 version ${kernelver}${debugid}
@@ -50,6 +57,7 @@ options ${kernelopts}
 grub_users \$grub_users
 grub_arg --unrestricted
 grub_class ${ID}
+${devicetree_entry}
 EOF
 }