diff --git a/src/ChangeLog b/src/ChangeLog
index 92394c678ea..bfb6e5a87b3 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,9 @@
+2012-09-12  Eli Zaretskii  <eliz@gnu.org>
+
+	* w32proc.c (sys_kill): If PID is our process ID and the signal is
+	SIGABRT, call emacs_abort.  Avoids silently exiting upon assertion
+	violation.  (Bug#12426)
+
 2012-09-12  Paul Eggert  <eggert@cs.ucla.edu>
 
 	* image.c (jpeg_memory_src): Don't assume string len fits in unsigned.
diff --git a/src/w32proc.c b/src/w32proc.c
index b9239cbb99a..74427e76a4f 100644
--- a/src/w32proc.c
+++ b/src/w32proc.c
@@ -1429,6 +1429,9 @@ sys_kill (int pid, int sig)
   int need_to_free = 0;
   int rc = 0;
 
+  if (pid == getpid () && sig == SIGABRT)
+    emacs_abort ();
+
   /* Only handle signals that will result in the process dying */
   if (sig != SIGINT && sig != SIGKILL && sig != SIGQUIT && sig != SIGHUP)
     {