diff --git a/regex.tal b/regex.tal
index 566ba5c..2f6248e 100644
--- a/regex.tal
+++ b/regex.tal
@@ -484,6 +484,7 @@
         #0004 ADD2 SUB2 #0002 DIV2 NIP ( dst (dst-(a+4))/2 )
         ;arena-pos LDA2 STH2k #0003 ADD2 STA ( dst [a] )
         ;arena-pos STA2 STH2r ( a )
+        #0000 OVR2 INC2 STA2  ( a )
         DUP2 ;c-peek-and-finalize JMP2
     &error
         #abcd #0000 DIV ( TODO error here )