diff --git a/plugin/business/doh/src/doh.cpp b/plugin/business/doh/src/doh.cpp
index 259be99..a572bc0 100644
--- a/plugin/business/doh/src/doh.cpp
+++ b/plugin/business/doh/src/doh.cpp
@@ -812,7 +812,7 @@ int doh_on_data(const struct tfe_stream *stream, const struct tfe_http_session *
 	struct doh_ctx *ctx = *(struct doh_ctx **)pme;
 	assert(ctx);
 
-	if (!req_session_is_doh(session, ctx))
+	if (!session->req || !req_session_is_doh(session, ctx))
 	{
 		return CALL_NEXT_PLUGIN;
 	}