diff --git a/src/mustach-dhcpd-pools.c b/src/mustach-dhcpd-pools.c
index 67260fd..77b240b 100644
--- a/src/mustach-dhcpd-pools.c
+++ b/src/mustach-dhcpd-pools.c
@@ -306,7 +306,7 @@ static int must_enter(void *closure, const char *name)
 }
 
 /*! \brief Function that is called when all elements within a print loop are outputed. */
-static int must_leave(void *closure __attribute__ ((unused)))
+static int must_leave(void *closure)
 {
 	struct expl *e = closure;