1 files changed, 1 insertions, 1 deletions
diff --git a/op.h b/op.h
index 35aa48d54c..ae6989acb8 100644
--- a/op.h
+++ b/op.h
@@ -369,7 +369,7 @@ struct pmop {
  * unshared area without affecting binary compatibility */
 #define PMf_BASE_SHIFT (_RXf_PMf_SHIFT_NEXT+6)
 
-/* taint $1 etc. if target tainted */
+/* 'use re "taint"' in scope: taint $1 etc. if target tainted */
 #define PMf_RETAINT	(1<<(PMf_BASE_SHIFT+0))
 
 /* match successfully only once per reset, with related flag RXf_USED in