diff --git a/examples/lwip/.gitignore b/examples/lwip/.gitignore
index a8e0bd03..fb77d158 100644
--- a/examples/lwip/.gitignore
+++ b/examples/lwip/.gitignore
@@ -5,4 +5,6 @@ lwip-contrib
 # never objects, and not the resulting binary
 *.o
 client
+client-dtls
 server
+server-dtls