diff --git a/php_memcached.c b/php_memcached.c
index c1bce93b..7ff6a87c 100644
--- a/php_memcached.c
+++ b/php_memcached.c
@@ -4264,39 +4264,39 @@ static void php_memc_register_constants(INIT_FUNC_ARGS)
 	 * Indicate whether igbinary serializer is available
 	 */
 #ifdef HAVE_MEMCACHED_IGBINARY
-	REGISTER_MEMC_CLASS_CONST_LONG(HAVE_IGBINARY, 1);
+	REGISTER_MEMC_CLASS_CONST_BOOL(HAVE_IGBINARY, 1);
 #else
-	REGISTER_MEMC_CLASS_CONST_LONG(HAVE_IGBINARY, 0);
+	REGISTER_MEMC_CLASS_CONST_BOOL(HAVE_IGBINARY, 0);
 #endif
 
 	/*
 	 * Indicate whether json serializer is available
 	 */
 #ifdef HAVE_JSON_API
-	REGISTER_MEMC_CLASS_CONST_LONG(HAVE_JSON, 1);
+	REGISTER_MEMC_CLASS_CONST_BOOL(HAVE_JSON, 1);
 #else
-	REGISTER_MEMC_CLASS_CONST_LONG(HAVE_JSON, 0);
+	REGISTER_MEMC_CLASS_CONST_BOOL(HAVE_JSON, 0);
 #endif
 
     /*
      * Indicate whether msgpack serializer is available
      */
 #ifdef HAVE_MEMCACHED_MSGPACK
-	REGISTER_MEMC_CLASS_CONST_LONG(HAVE_MSGPACK, 1);
+	REGISTER_MEMC_CLASS_CONST_BOOL(HAVE_MSGPACK, 1);
 #else
-	REGISTER_MEMC_CLASS_CONST_LONG(HAVE_MSGPACK, 0);
+	REGISTER_MEMC_CLASS_CONST_BOOL(HAVE_MSGPACK, 0);
 #endif
 
 #ifdef HAVE_MEMCACHED_SESSION
-	REGISTER_MEMC_CLASS_CONST_LONG(HAVE_SESSION, 1);
+	REGISTER_MEMC_CLASS_CONST_BOOL(HAVE_SESSION, 1);
 #else
-	REGISTER_MEMC_CLASS_CONST_LONG(HAVE_SESSION, 0);
+	REGISTER_MEMC_CLASS_CONST_BOOL(HAVE_SESSION, 0);
 #endif
 
 #ifdef HAVE_MEMCACHED_SASL
-	REGISTER_MEMC_CLASS_CONST_LONG(HAVE_SASL, 1);
+	REGISTER_MEMC_CLASS_CONST_BOOL(HAVE_SASL, 1);
 #else
-	REGISTER_MEMC_CLASS_CONST_LONG(HAVE_SASL, 0);
+	REGISTER_MEMC_CLASS_CONST_BOOL(HAVE_SASL, 0);
 #endif
 
 	/*