diff --git a/third-party/macosx-libevent-config.h b/third-party/macosx-libevent-config.h
index 3bbd560d7..e34ec1d1d 100644
--- a/third-party/macosx-libevent-config.h
+++ b/third-party/macosx-libevent-config.h
@@ -50,7 +50,7 @@
 #define HAVE_INTTYPES_H 1
 
 /* Define to 1 if you have the `kqueue' function. */
-/* #define HAVE_KQUEUE 1 */
+#define HAVE_KQUEUE 1
 
 /* Define to 1 if you have the `nsl' library (-lnsl). */
 /* #undef HAVE_LIBNSL */
@@ -194,7 +194,7 @@
 #define HAVE_VASPRINTF 1
 
 /* Define if kqueue works correctly with pipes */
-/* #define HAVE_WORKING_KQUEUE 1 */
+#define HAVE_WORKING_KQUEUE 1
 
 /* Define to the sub-directory in which libtool stores uninstalled libraries.
    */
diff --git a/third-party/macosx-libevent-event-config.h b/third-party/macosx-libevent-event-config.h
index d30a34af9..5d2199b69 100644
--- a/third-party/macosx-libevent-event-config.h
+++ b/third-party/macosx-libevent-event-config.h
@@ -57,7 +57,7 @@
 #define _EVENT_HAVE_INTTYPES_H 1
 
 /* Define to 1 if you have the `kqueue' function. */
-/* #define _EVENT_HAVE_KQUEUE 1 */
+#define _EVENT_HAVE_KQUEUE 1
 
 /* Define to 1 if you have the `nsl' library (-lnsl). */
 /* #undef _EVENT_HAVE_LIBNSL */
@@ -201,7 +201,7 @@
 #define _EVENT_HAVE_VASPRINTF 1
 
 /* Define if kqueue works correctly with pipes */
-/* #define _EVENT_HAVE_WORKING_KQUEUE 1 */
+#define _EVENT_HAVE_WORKING_KQUEUE 1
 
 /* Define to the sub-directory in which libtool stores uninstalled libraries.
    */