diff --git a/src/ae.cpp b/src/ae.cpp
index a08b23454..d84a5b0d6 100644
--- a/src/ae.cpp
+++ b/src/ae.cpp
@@ -130,7 +130,9 @@ struct aeCommand
     void *clientData;
     aeCommandControl *pctl;
 };
+#ifdef PIPE_BUF
 static_assert(sizeof(aeCommand) <= PIPE_BUF);
+#endif
 
 void aeProcessCmd(aeEventLoop *eventLoop, int fd, void *, int )
 {
diff --git a/src/cron.cpp b/src/cron.cpp
index 2c20a5c0e..11d1f6d8c 100644
--- a/src/cron.cpp
+++ b/src/cron.cpp
@@ -67,6 +67,7 @@ void cronCommand(client *c)
 
     robj *o = createObject(OBJ_CRON, spjob.release());
     setKey(c->db, c->argv[ARG_NAME], o);
+    decrRefCount(o);
     // use an expire to trigger execution.  Note: We use a subkey expire here so legacy clients don't delete it.
     setExpire(c, c->db, c->argv[ARG_NAME], c->argv[ARG_NAME], base + interval);
     addReply(c, shared.ok);
@@ -102,7 +103,7 @@ void executeCronJobExpireHook(const char *key, robj *o)
     int dbId = job->dbNum;
     if (job->fSingleShot)
     {
-        dbSyncDelete(cFake->db, keyobj);
+        serverAssert(dbSyncDelete(cFake->db, keyobj));
     }
     else
     {