diff --git a/server.c b/server.c
index 2d07c05..3eac784 100644
--- a/server.c
+++ b/server.c
@@ -64,7 +64,7 @@ int server_start(conn_handler handler, int16_t port) {
                     ret = handler(buffer);
                 }
 
-                if (0 <= ret && 0 >= write(clientfd, buffer, sizeof(buffer))) {
+                if (0 <= ret && 0 >= write(clientfd, buffer, strlen(buffer))) {
                     printf("server_start: cannot write to socket\n");
                     ret = -1;
                 }