diff --git a/ChangeLog b/ChangeLog
index f5b990ce..5a5b0029 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2010-10-28  Tatsuhiro Tsujikawa  <t-tujikawa@users.sourceforge.net>
+
+	Fixed compiler warning when checking c-ares version.
+	* m4/libcares.m4
+
 2010-10-27  Tatsuhiro Tsujikawa  <t-tujikawa@users.sourceforge.net>
 
 	Removed unused variable r.
diff --git a/configure b/configure
index 26f90f6c..491e5f1e 100755
--- a/configure
+++ b/configure
@@ -7089,8 +7089,7 @@ int
 main ()
 {
 
-    ares_channel channel;
-    ares_gethostbyname(channel, "foo", 0, callback, 0);
+    ares_gethostbyname((ares_channel)0, "foo", 0, callback, 0);
 
   ;
   return 0;
diff --git a/m4/libcares.m4 b/m4/libcares.m4
index 6fab7eae..4273917f 100644
--- a/m4/libcares.m4
+++ b/m4/libcares.m4
@@ -34,8 +34,7 @@ if test "x$have_libcares" = "xyes"; then
     void callback(void* arg, int status, int timeouts, struct hostent* host);
     ]],
     [[
-    ares_channel channel;
-    ares_gethostbyname(channel, "foo", 0, callback, 0);
+    ares_gethostbyname((ares_channel)0, "foo", 0, callback, 0);
     ]])],
     [have_libcares1_5=yes],
     [have_libcares1_5=no])