1 files changed, 3 insertions, 1 deletions
diff --git a/perly.y b/perly.y
index f6e7053366..a30f4cea7e 100644
--- a/perly.y
+++ b/perly.y
@@ -16,7 +16,9 @@
 #include "EXTERN.h"
 #define PERL_IN_PERLY_C
 #include "perl.h"
-
+#ifdef EBCDIC
+#undef YYDEBUG
+#endif
 #define dep() deprecate("\"do\" to call subroutines")
 
 /* stuff included here to make perly_c.diff apply better */