diff --git a/ChangeLog b/ChangeLog
index 9d81e2d109..7a5307fef1 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Tue May  3 05:35:54 2016  Eric Wong  <e@80x24.org>
+
+	* process.c (disable_child_handler_fork_child):
+	  initialize handler for SIGPIPE for !POSIX_SIGNAL
+
 Mon May  2 23:03:42 2016  NAKAMURA Usaku  <usa@ruby-lang.org>
 
 	* win32/win32.c, include/ruby/win32.h (rb_w32_utruncate): implements new
diff --git a/process.c b/process.c
index 660c2c7314..6f3fc235f2 100644
--- a/process.c
+++ b/process.c
@@ -3502,8 +3502,12 @@ disable_child_handler_fork_child(struct child_handler_disabler_state *old, char
     for (sig = 1; sig < NSIG; sig++) {
         int reset = 0;
 #ifdef SIGPIPE
-        if (sig == SIGPIPE)
+        if (sig == SIGPIPE) {
             reset = 1;
+#ifndef POSIX_SIGNAL
+            handler = SIG_DFL;
+#endif
+	}
 #endif
         if (!reset) {
 #ifdef POSIX_SIGNAL