diff --git a/libcinatra_http/cinatra_http/utils.h b/libcinatra_http/cinatra_http/utils.h
index bf699276..dfdaffc9 100644
--- a/libcinatra_http/cinatra_http/utils.h
+++ b/libcinatra_http/cinatra_http/utils.h
@@ -65,6 +65,7 @@ namespace cinatra
 	template<typename IteratorT, typename MapT>
 	void kv_parser(IteratorT begin, IteratorT end, MapT& result, int kv_sep, int field_sep, bool unescape, bool trim)
 	{
+		result.clear();
 		std::string key, val;
 		auto result_add = [&result, trim](std::string key, std::string val)
 		{
diff --git a/libcinatra_http/request.cpp b/libcinatra_http/request.cpp
index cfc4ff86..0f8fef5a 100644
--- a/libcinatra_http/request.cpp
+++ b/libcinatra_http/request.cpp
@@ -47,7 +47,7 @@ namespace cinatra
 			{
 				return -1;
 			}
-
+			queries_.clear();
 			if (url_info_.field_set & (1 << UF_QUERY))
 			{
 				kv_parser(url_ + url_info_.field_data[UF_QUERY].off,
@@ -463,4 +463,4 @@ namespace cinatra
 		buffer_.max_size += size;
 	}
 
-}
\ No newline at end of file
+}