1 files changed, 1 insertions, 0 deletions

diff --git a/io.c b/io.c
index bbbe04bec7..7c2a89c7be 100644
--- a/io.c
+++ b/io.c
@@ -2128,6 +2128,7 @@ rb_f_p(argc, argv)
     for (i=0; i<argc; i++) {
 	rb_p(argv[i]);
     }
+    fflush(stdout);
     return Qnil;
 }