diff --git a/src/libsystemd-network/sd-dhcp-client.c b/src/libsystemd-network/sd-dhcp-client.c
index 123169832c..ad79c6cc2c 100644
--- a/src/libsystemd-network/sd-dhcp-client.c
+++ b/src/libsystemd-network/sd-dhcp-client.c
@@ -1636,14 +1636,11 @@ static int client_receive_message_udp(
         if (buflen < 0)
                 return buflen;
 
-        if (buflen == 0)
-                buflen = 1;
-
         message = malloc0(buflen);
         if (!message)
                 return -ENOMEM;
 
-        len = read(fd, message, buflen);
+        len = recv(fd, message, buflen, 0);
         if (len < 0) {
                 if (errno == EAGAIN || errno == EINTR)
                         return 0;
diff --git a/src/libsystemd-network/sd-dhcp6-client.c b/src/libsystemd-network/sd-dhcp6-client.c
index 0c296e39fa..05972e01c9 100644
--- a/src/libsystemd-network/sd-dhcp6-client.c
+++ b/src/libsystemd-network/sd-dhcp6-client.c
@@ -917,7 +917,7 @@ static int client_receive_message(sd_event_source *s, int fd, uint32_t revents,
         if (!message)
                 return -ENOMEM;
 
-        len = read(fd, message, buflen);
+        len = recv(fd, message, buflen, 0);
         if (len < 0) {
                 if (errno == EAGAIN || errno == EINTR)
                         return 0;