diff --git a/src/ld65/cfg/lynx.cfg b/src/ld65/cfg/lynx.cfg
index 1a10cc443..fad73501d 100644
--- a/src/ld65/cfg/lynx.cfg
+++ b/src/ld65/cfg/lynx.cfg
@@ -12,7 +12,8 @@ SEGMENTS {
     DATA: load = RAM, type = rw;
     BSS: load = RAM, type = bss, define = yes;
     ZEROPAGE: load = ZP, type = zp;
-    EXTZP: load = ZP, type = zp;
+    EXTZP: load = ZP, type = zp, optional = yes;
+    APPZP: load = ZP, type = zp, optional = yes;
 }
 FEATURES {
     CONDES: segment = RODATA,