diff --git a/cfg/atari-asm.cfg b/cfg/atari-asm.cfg
index 4e87a8884..3fea61917 100644
--- a/cfg/atari-asm.cfg
+++ b/cfg/atari-asm.cfg
@@ -24,6 +24,6 @@ SEGMENTS {
     RODATA:    load = RAM,        type = ro                 optional = yes;
     DATA:      load = RAM,        type = rw                 optional = yes;
     BSS:       load = RAM,        type = bss, define = yes, optional = yes;
-    ZEROPAGE:  load = ZP,         type = zp;
+    ZEROPAGE:  load = ZP,         type = zp,                optional = yes;
     AUTOSTRT:  load = TRAILER,    type = ro,                optional = yes;
 }
diff --git a/cfg/atari-cart.cfg b/cfg/atari-cart.cfg
index 10674dc49..db9486a9f 100644
--- a/cfg/atari-cart.cfg
+++ b/cfg/atari-cart.cfg
@@ -24,7 +24,7 @@ SEGMENTS {
     DATA:      load = ROM, run = RAM, type = rw,  define = yes, optional = yes;
     BSS:       load = RAM,            type = bss, define = yes, optional = yes;
     CARTHDR:   load = CARTID,         type = ro;
-    ZEROPAGE:  load = ZP,             type = zp;
+    ZEROPAGE:  load = ZP,             type = zp,                optional = yes;
     EXTZP:     load = ZP,             type = zp,                optional = yes;
 }
 FEATURES {