diff --git a/winsup/cygwin/ChangeLog b/winsup/cygwin/ChangeLog
index f75f55093..4d995daa1 100644
--- a/winsup/cygwin/ChangeLog
+++ b/winsup/cygwin/ChangeLog
@@ -1,3 +1,7 @@
+2010-09-02  Christopher Faylor  <me+cygwin@cgf.cx>
+
+	* sigoproc.cc (sigproc_init): Use American spelling in comment.
+
 2010-09-01  Christopher Faylor  <me+cygwin@cgf.cx>
 
 	* dcrt0.cc (dll_crt0_0): Remove myself settings.
diff --git a/winsup/cygwin/sigproc.cc b/winsup/cygwin/sigproc.cc
index 2e6306813..17a18ffe0 100644
--- a/winsup/cygwin/sigproc.cc
+++ b/winsup/cygwin/sigproc.cc
@@ -463,7 +463,7 @@ sigproc_init ()
   ProtectHandle (my_readsig);
   myself->sendsig = my_sendsig;
   new cygthread (wait_sig, cygself, "sig");
-  /* sync_proc_subproc is used by proc_subproc.  It serialises
+  /* sync_proc_subproc is used by proc_subproc.  It serializes
      access to the children and proc arrays.  */
   sync_proc_subproc.init ("sync_proc_subproc");
 }