diff --git a/glicid/packages/cluster.scm b/glicid/packages/cluster.scm
index 5805a8d..358afe0 100644
--- a/glicid/packages/cluster.scm
+++ b/glicid/packages/cluster.scm
@@ -92,6 +92,9 @@
   
 )
 
+;; helper function
+(define (latest-version v1 v2) (if (string> (package-version v1) (package-version v2)) v1 v2))
+
 
 ;;;;;;;;
 
@@ -118,8 +121,7 @@
 
 (define-public glicid-keepalived
   (package
-    (inherit (if (string> (package-version keepalived) (package-version gnu:keepalived)) keepalived gnu:keepalived))
-
+    (inherit (latest-version keepalived gnu:keepalived))
     (name "glicid-keepalived")
     (arguments
      `(#:configure-flags