1 files changed, 1 insertions, 1 deletions
diff --git a/perly.y b/perly.y
index f9c5c5f606..bf98ac8079 100644
--- a/perly.y
+++ b/perly.y
@@ -125,7 +125,7 @@ static void yydestruct(pTHXo_ void *ptr);
 prog	:	/* NULL */
 		{
 #if defined(YYDEBUG) && defined(DEBUGGING)
-		    yydebug = (PL_debug & 1);
+		    yydebug = (DEBUG_p_TEST);
 #endif
 		    PL_expect = XSTATE;
 		}