diff --git a/src/toolsrc/plforth.pla b/src/toolsrc/plforth.pla
index b1cf36a..8396e7b 100644
--- a/src/toolsrc/plforth.pla
+++ b/src/toolsrc/plforth.pla
@@ -835,8 +835,8 @@ end
 //
 def warmstart#0
   (@_reset_estack)()#0
-  //brk    = 0
-  //brkcfa = 0
+  brk    = 0
+  brkcfa = 0
   RSP    = RSTK_SIZE
   if state & comp_flag // Undo compilation state
     heaprelease(vlist)