diff --git a/soc/runtime/liblwip/lwipopts.h b/soc/runtime/liblwip/lwipopts.h
index eff5a4aae..bca6722a3 100644
--- a/soc/runtime/liblwip/lwipopts.h
+++ b/soc/runtime/liblwip/lwipopts.h
@@ -117,9 +117,8 @@ a lot of data that needs to be copied, this should be set high. */
 /* TCP sender buffer space (bytes). */
 #define TCP_SND_BUF             32 * 1024
 
-/* TCP sender buffer space (pbufs). This must be at least = 2 *
-   TCP_SND_BUF/TCP_MSS for things to work. */
-#define TCP_SND_QUEUELEN        2 * TCP_SND_BUF/TCP_MSS
+/* TCP sender buffer space (pbufs). */
+#define TCP_SND_QUEUELEN        3 * TCP_SND_BUF/TCP_MSS
 
 /* TCP receive window. */
 #define TCP_WND                 16 * 1024