diff --git a/package/rapidjson/rapidjson.mk b/package/rapidjson/rapidjson.mk
index 1ad93147b6..5da407b79f 100644
--- a/package/rapidjson/rapidjson.mk
+++ b/package/rapidjson/rapidjson.mk
@@ -8,6 +8,8 @@ RAPIDJSON_VERSION = v1.0.2
 RAPIDJSON_SITE = $(call github,miloyip,rapidjson,$(RAPIDJSON_VERSION))
 RAPIDJSON_LICENSE = MIT
 RAPIDJSON_LICENSE_FILES = license.txt
+
+# rapidjson is a header-only C++ library
 RAPIDJSON_INSTALL_TARGET = NO
 RAPIDJSON_INSTALL_STAGING = YES