diff --git a/examples/telnet-server/Makefile.c64.defines b/examples/telnet-server/Makefile.c64.defines
index bcd39d550..caf0dfa69 100644
--- a/examples/telnet-server/Makefile.c64.defines
+++ b/examples/telnet-server/Makefile.c64.defines
@@ -1 +1 @@
-DEFINES = CONNECTIONS=3,WITH_LOGGING,WITH_CLIENT,WITH_DNS
+DEFINES = CONNECTIONS=3,WITH_LOGGING,WITH_CLIENT,WITH_DNS,WITH_PFS