1 files changed, 2 insertions, 0 deletions
diff --git a/pp.c b/pp.c
index 9af36f06c7..7ff513802c 100644
--- a/pp.c
+++ b/pp.c
@@ -17,6 +17,8 @@
 #include "perl.h"
 #include "keywords.h"
 
+#include "reentr.h"
+
 /* variations on pp_null */
 
 /* XXX I can't imagine anyone who doesn't have this actually _needs_