diff --git a/node/Membership.hpp b/node/Membership.hpp
index e9fbd5406..caff957b7 100644
--- a/node/Membership.hpp
+++ b/node/Membership.hpp
@@ -183,10 +183,10 @@ private:
 	{
 		if ((ip.isV6())&&(nconf.ndpEmulation())) {
 			const InetAddress sixpl(InetAddress::makeIpv66plane(nconf.networkId,nconf.issuedTo.toInt()));
-			for(int i=0;i<nconf.staticIpCount;++i) {
+			for(unsigned int i=0;i<nconf.staticIpCount;++i) {
 				if (nconf.staticIps[i].ipsEqual(sixpl)) {
 					bool prefixMatches = true;
-					for(int j=0;j<5;++j) { // check for match on /40
+					for(unsigned int j=0;j<5;++j) { // check for match on /40
 						if ((((const struct sockaddr_in6 *)&ip)->sin6_addr.s6_addr)[j] != (((const struct sockaddr_in6 *)&sixpl)->sin6_addr.s6_addr)[j]) {
 							prefixMatches = false;
 							break;
@@ -199,10 +199,10 @@ private:
 			}
 
 			const InetAddress rfc4193(InetAddress::makeIpv6rfc4193(nconf.networkId,nconf.issuedTo.toInt()));
-			for(int i=0;i<nconf.staticIpCount;++i) {
+			for(unsigned int i=0;i<nconf.staticIpCount;++i) {
 				if (nconf.staticIps[i].ipsEqual(rfc4193)) {
 					bool prefixMatches = true;
-					for(int j=0;j<11;++j) { // check for match on /88
+					for(unsigned int j=0;j<11;++j) { // check for match on /88
 						if ((((const struct sockaddr_in6 *)&ip)->sin6_addr.s6_addr)[j] != (((const struct sockaddr_in6 *)&rfc4193)->sin6_addr.s6_addr)[j]) {
 							prefixMatches = false;
 							break;