diff --git a/src/ld65/cfg/cbm510.cfg b/src/ld65/cfg/cbm510.cfg
index 499502776..bb65bdb50 100644
--- a/src/ld65/cfg/cbm510.cfg
+++ b/src/ld65/cfg/cbm510.cfg
@@ -19,6 +19,10 @@ FEATURES {
 	    type = destructor,
 	    label = __DESTRUCTOR_TABLE__,
 	    count = __DESTRUCTOR_COUNT__;
+    CONDES: segment = RODATA,
+	    type = 2,
+	    label = __IRQFUNC_TABLE__,
+	    count = __IRQFUNC_COUNT__;
 }
 SYMBOLS {
     __STACKSIZE__ = $781;      	# ~2K stack