diff --git a/proto/rpki/rpki.c b/proto/rpki/rpki.c
index aa07f7d9..3e46b6d1 100644
--- a/proto/rpki/rpki.c
+++ b/proto/rpki/rpki.c
@@ -701,7 +701,7 @@ rpki_reconfigure_cache(struct rpki_proto *p UNUSED, struct rpki_cache *cache, st
 #endif
 
 #define TEST_INTERVAL(name, Name) 						\
-    if (cache->name##_interval != new->name##_interval ||			\
+    if (old->name##_interval != new->name##_interval ||				\
 	old->keep_##name##_interval != new->keep_##name##_interval) 		\
     { 										\
       cache->name##_interval = new->name##_interval;				\