diff --git a/sockssrv.c b/sockssrv.c
index dfe3e15..98e4622 100644
--- a/sockssrv.c
+++ b/sockssrv.c
@@ -29,7 +29,7 @@
 #include <stdio.h>
 #include <pthread.h>
 #include <signal.h>
-#include <sys/select.h>
+#include <poll.h>
 #include <arpa/inet.h>
 #include <errno.h>
 #include <limits.h>
@@ -245,29 +245,25 @@ static void send_error(int fd, enum errorcode ec) {
 }
 
 static void copyloop(int fd1, int fd2) {
-	int maxfd = fd2;
-	if(fd1 > fd2) maxfd = fd1;
-	fd_set fdsc, fds;
-	FD_ZERO(&fdsc);
-	FD_SET(fd1, &fdsc);
-	FD_SET(fd2, &fdsc);
+	struct pollfd fds[2] = {
+		[0] = {.fd = fd1, .events = POLLIN},
+		[1] = {.fd = fd2, .events = POLLIN},
+	};
 
 	while(1) {
-		memcpy(&fds, &fdsc, sizeof(fds));
 		/* inactive connections are reaped after 15 min to free resources.
 		   usually programs send keep-alive packets so this should only happen
 		   when a connection is really unused. */
-		struct timeval timeout = {.tv_sec = 60*15, .tv_usec = 0};
-		switch(select(maxfd+1, &fds, 0, 0, &timeout)) {
+		switch(poll(fds, 2, 60*15*1000)) {
 			case 0:
 				send_error(fd1, EC_TTL_EXPIRED);
 				return;
 			case -1:
-				if(errno == EINTR) continue;
-				else perror("select");
+				if(errno == EINTR || errno == EAGAIN) continue;
+				else perror("poll");
 				return;
 		}
-		int infd = FD_ISSET(fd1, &fds) ? fd1 : fd2;
+		int infd = (fds[0].revents & POLLIN) ? fd1 : fd2;
 		int outfd = infd == fd2 ? fd1 : fd2;
 		char buf[1024];
 		ssize_t sent = 0, n = read(infd, buf, sizeof buf);