diff --git a/mythtv/libs/libmythtv/recorders/ExternalStreamHandler.cpp b/mythtv/libs/libmythtv/recorders/ExternalStreamHandler.cpp
index edbe2183c4..bbeda34ebf 100644
--- a/mythtv/libs/libmythtv/recorders/ExternalStreamHandler.cpp
+++ b/mythtv/libs/libmythtv/recorders/ExternalStreamHandler.cpp
@@ -1,6 +1,7 @@
 // -*- Mode: c++ -*-
 
 // POSIX headers
+#include <thread>
 #include <iostream>
 #include <fcntl.h>
 #include <unistd.h>
diff --git a/mythtv/programs/mythexternrecorder/MythExternRecApp.cpp b/mythtv/programs/mythexternrecorder/MythExternRecApp.cpp
index 198a375aff..5ac4f82347 100644
--- a/mythtv/programs/mythexternrecorder/MythExternRecApp.cpp
+++ b/mythtv/programs/mythexternrecorder/MythExternRecApp.cpp
@@ -18,6 +18,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
+#include <thread>
 #include "commandlineparser.h"
 #include "MythExternRecApp.h"