diff --git a/src/fd_utils.c b/src/fd_utils.c
index e268908..ffe8ba7 100644
--- a/src/fd_utils.c
+++ b/src/fd_utils.c
@@ -41,7 +41,7 @@ int uc_set_tcp_keepalive(int sockfd)
     return setsockopt(sockfd, SOL_SOCKET, SO_KEEPALIVE, &optval, sizeof(optval));
 }
 
-int uc_set_tcp_keepalive_cfg(int sockfd, const struct UCKeepConfig *cfg)
+int uc_set_tcp_keepalive_cfg(int sockfd, const struct uCKeepConfig *cfg)
 {
     int rc;
 
@@ -57,12 +57,12 @@ int uc_set_tcp_keepalive_cfg(int sockfd, const struct UCKeepConfig *cfg)
         return rc;
     }
 
-    rc = setsockopt(sockfd, IPPROTO_TCP, TCP_KEEPCNT, &cfg->keepidle, sizeof cfg->keepintvl);
+    rc = setsockopt(sockfd, IPPROTO_TCP, TCP_KEEPIDLE, &cfg->keepidle, sizeof cfg->keepidle);
     if (rc != 0) {
         return rc;
     }
 
-    rc = setsockopt(sockfd, IPPROTO_TCP, TCP_KEEPCNT, &cfg->keepintvl, sizeof cfg->keepintvl);
+    rc = setsockopt(sockfd, IPPROTO_TCP, TCP_KEEPINTVL, &cfg->keepintvl, sizeof cfg->keepintvl);
     if (rc != 0) {
         return rc;
     }