diff --git a/ffmpeg.cpp b/ffmpeg.cpp
index 6cb01cde..d21caf97 100644
--- a/ffmpeg.cpp
+++ b/ffmpeg.cpp
@@ -5,6 +5,10 @@
 #include <exception>
 #include <unistd.h>
 #include <sys/wait.h>
+#if TNTVERSION >= 30000
+	#include <sstream>
+	#include <fstream>
+#endif
 
 #include <vdr/tools.h>
 #include <tnt/tntnet.h>
diff --git a/tntconfig.h b/tntconfig.h
index 21692459..26a6d7ff 100644
--- a/tntconfig.h
+++ b/tntconfig.h
@@ -1,6 +1,10 @@
 #ifndef VDR_LIVE_TNTCONFIG_H
 #define VDR_LIVE_TNTCONFIG_H
 
+#if TNTVERSION >= 30000
+	#include <fstream>
+#endif
+
 #include "tntfeatures.h"
 
 #include <tnt/tntnet.h>