diff --git a/kni_entry.c b/kni_entry.c
index 8410a9e..aa9f31d 100644
--- a/kni_entry.c
+++ b/kni_entry.c
@@ -1046,12 +1046,12 @@ extern "C" char kni_ipv4_entry(const struct streaminfo *pstream,unsigned char ro
 	addr.addrtype = ADDR_TYPE_IPV4;
 	addr.paddr = (void*)(&ipv4_addr);
 
-	memset(&ipv4_addr,0,sizeof(struct tuple4));
+	memset(&ipv4_addr,0,sizeof(ipv4_addr));
 	ipv4_addr.daddr = *((unsigned int*)&(ipv4_hdr->ip_dst));
 	ipv4_addr.saddr = *((unsigned int*)&(ipv4_hdr->ip_src));
 
 
-	memset(&pmeinfo,0,sizeof(struct kni_pme_info));
+	memset(&pmeinfo,0,sizeof(pmeinfo));
 	pmeinfo.mid = mid;
 	
 	kni_scan_ip(&addr,thread_seq,ipv4_hdr->ip_p,&pmeinfo);
@@ -1095,11 +1095,11 @@ extern "C" char kni_ipv6_entry(const struct streaminfo *pstream,unsigned char ro
 	addr.addrtype = ADDR_TYPE_IPV6;
 	addr.paddr = (void*)(&ipv6_addr);
 
-	memset(&ipv6_addr,0,sizeof(struct tuple6));
+	memset(&ipv6_addr,0,sizeof(ipv6_addr));
 	ipv6_addr.saddr=ipv6_hdr->ip6_src;
 	ipv6_addr.daddr=ipv6_hdr->ip6_dst;
 
-	memset(&pmeinfo,0,sizeof(struct kni_pme_info));
+	memset(&pmeinfo,0,sizeof(pmeinfo));
 	pmeinfo.mid = mid;
 	
 	kni_scan_ip(&addr,thread_seq,next_hdr_type,&pmeinfo);
diff --git a/kni_intercept.c b/kni_intercept.c
index 18a7094..2553775 100644
--- a/kni_intercept.c
+++ b/kni_intercept.c
@@ -571,7 +571,7 @@ int kni_keepalive_replay(struct stream_tuple4_v4* ipv4_addr,int iprever_flag,str
 	{
 		return 0;
 	}
-
+	assert(iprever_flag<2);
 
 	int index=1-iprever_flag;