diff --git a/main/share/gb_reserved_temp.h b/main/share/gb_reserved_temp.h
index 00941e17e..a6d91883f 100644
--- a/main/share/gb_reserved_temp.h
+++ b/main/share/gb_reserved_temp.h
@@ -189,6 +189,7 @@ COMP_INFO COMP_res_info[] =
   { "\\=",          RSF_ASGN,               RS_BSLASH                     },
   { "&=",           RSF_ASGN,               RS_AMP                        },
   { "&/=",          RSF_ASGN,               RS_FILE                       },
+  { "^=",           RSF_ASGN,               RS_FLEX                       },
 
   { NULL }
 };