From 4e9faa5793bdfdb6cc9e4e79f75a2d3911b7d031 Mon Sep 17 00:00:00 2001
From: Jim Melton <jwmelto@users.sourceforge.net>
Date: Wed, 10 Aug 2022 21:26:10 -0600
Subject: [PATCH] cpplint

---
 src/algorithms/signal_source/adapters/zmq_signal_source.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/algorithms/signal_source/adapters/zmq_signal_source.h b/src/algorithms/signal_source/adapters/zmq_signal_source.h
index dc33c1c0e..55b2d29b7 100644
--- a/src/algorithms/signal_source/adapters/zmq_signal_source.h
+++ b/src/algorithms/signal_source/adapters/zmq_signal_source.h
@@ -23,6 +23,7 @@
 #include <gnuradio/blocks/file_sink.h>  // for dump
 #include <gnuradio/zeromq/sub_source.h>
 #include <pmt/pmt.h>
+#include <string>
 
 /** \addtogroup Signal_Source
  * \{ */