diff --git a/gtk2_ardour/ardour_ui_video.cc b/gtk2_ardour/ardour_ui_video.cc
index 87baef281d..15eaf06021 100644
--- a/gtk2_ardour/ardour_ui_video.cc
+++ b/gtk2_ardour/ardour_ui_video.cc
@@ -194,7 +194,7 @@ ARDOUR_UI::start_video_server (Gtk::Window* float_window, bool popup_msg)
 			delete video_server_process;
 		}
 
-		video_server_process = new ARDOUR::SystemExec(icsd_exec, argp);
+		video_server_process = new ARDOUR::SystemExec(icsd_exec, argp, true);
 		if (video_server_process->start()) {
 			warning << _("Cannot launch the video-server") << endmsg;
 			continue;
diff --git a/gtk2_ardour/luainstance.cc b/gtk2_ardour/luainstance.cc
index 72cc87ca96..69134e2dea 100644
--- a/gtk2_ardour/luainstance.cc
+++ b/gtk2_ardour/luainstance.cc
@@ -432,7 +432,7 @@ lua_forkexec (lua_State *L)
 	}
 	args[argc] = 0;
 
-	ARDOUR::SystemExec* x = new ARDOUR::SystemExec (args[0], args);
+	ARDOUR::SystemExec* x = new ARDOUR::SystemExec (args[0], args, true);
 	x->Terminated.connect (_luaexecs, MISSING_INVALIDATOR, boost::bind (&reaper, x), gui_context());
 
 	if (x->start()) {
@@ -455,7 +455,7 @@ lua_exec (std::string cmd)
 	args[1] = strdup ("-c");
 	args[2] = strdup (cmd.c_str());
 	args[3] = 0;
-	ARDOUR::SystemExec x ("/bin/sh", args);
+	ARDOUR::SystemExec x ("/bin/sh", args, true);
 	if (x.start()) {
 		return -1;
 	}
diff --git a/gtk2_ardour/transcode_ffmpeg.cc b/gtk2_ardour/transcode_ffmpeg.cc
index 037a4ed6c7..f5a5ca2f3a 100644
--- a/gtk2_ardour/transcode_ffmpeg.cc
+++ b/gtk2_ardour/transcode_ffmpeg.cc
@@ -88,7 +88,7 @@ TranscodeFfmpeg::probe ()
 	argp[4] = strdup ("-show_streams");
 	argp[5] = strdup (infile.c_str ());
 	argp[6] = 0;
-	ffcmd   = new ARDOUR::SystemExec (ffprobe_exe, argp);
+	ffcmd   = new ARDOUR::SystemExec (ffprobe_exe, argp, true);
 	ffcmd->ReadStdout.connect_same_thread (*this, boost::bind (&TranscodeFfmpeg::ffprobeparse, this, _1, _2));
 	ffcmd->Terminated.connect (*this, invalidator (*this), boost::bind (&TranscodeFfmpeg::ffexit, this), gui_context ());
 	if (ffcmd->start (SystemExec::IgnoreAndClose)) {
@@ -401,7 +401,7 @@ TranscodeFfmpeg::encode (std::string outfile, std::string inf_a, std::string inf
 		printf ("\n");
 	}
 
-	ffcmd = new ARDOUR::SystemExec (ffmpeg_exe, argp);
+	ffcmd = new ARDOUR::SystemExec (ffmpeg_exe, argp, true);
 	ffcmd->ReadStdout.connect_same_thread (*this, boost::bind (&TranscodeFfmpeg::ffmpegparse_v, this, _1, _2));
 	ffcmd->Terminated.connect (*this, invalidator (*this), boost::bind (&TranscodeFfmpeg::ffexit, this), gui_context ());
 
@@ -452,7 +452,7 @@ TranscodeFfmpeg::extract_audio (std::string outfile, ARDOUR::samplecnt_t /*sampl
 		printf ("\n");
 	}
 
-	ffcmd = new ARDOUR::SystemExec (ffmpeg_exe, argp);
+	ffcmd = new ARDOUR::SystemExec (ffmpeg_exe, argp, true);
 	ffcmd->ReadStdout.connect_same_thread (*this, boost::bind (&TranscodeFfmpeg::ffmpegparse_a, this, _1, _2));
 	ffcmd->Terminated.connect (*this, invalidator (*this), boost::bind (&TranscodeFfmpeg::ffexit, this), gui_context ());
 
@@ -524,7 +524,7 @@ TranscodeFfmpeg::transcode (std::string outfile, const int outw, const int outh,
 		printf ("\n");
 	}
 
-	ffcmd = new ARDOUR::SystemExec (ffmpeg_exe, argp);
+	ffcmd = new ARDOUR::SystemExec (ffmpeg_exe, argp, true);
 	ffcmd->ReadStdout.connect_same_thread (*this, boost::bind (&TranscodeFfmpeg::ffmpegparse_v, this, _1, _2));
 	ffcmd->Terminated.connect (*this, invalidator (*this), boost::bind (&TranscodeFfmpeg::ffexit, this), gui_context ());
 	if (ffcmd->start (SystemExec::MergeWithStdin)) {
diff --git a/gtk2_ardour/video_monitor.cc b/gtk2_ardour/video_monitor.cc
index f6d76199e8..b8c6cf6961 100644
--- a/gtk2_ardour/video_monitor.cc
+++ b/gtk2_ardour/video_monitor.cc
@@ -51,7 +51,7 @@ VideoMonitor::VideoMonitor (PublicEditor *ed, std::string xjadeo_bin_path)
 	starting = 0;
 	osdmode = 10; // 1: frameno, 2: timecode, 8: box
 
-	process = new ARDOUR::SystemExec(xjadeo_bin_path, X_("-R -J"));
+	process = new ARDOUR::SystemExec (xjadeo_bin_path, X_("-R -J"), true);
 	process->ReadStdout.connect_same_thread (*this, boost::bind (&VideoMonitor::parse_output, this, _1 ,_2));
 	process->Terminated.connect (*this, invalidator (*this), boost::bind (&VideoMonitor::terminated, this), gui_context());
 	XJKeyEvent.connect (*this, invalidator (*this), boost::bind (&VideoMonitor::forward_keyevent, this, _1), gui_context());
diff --git a/gtk2_ardour/video_timeline.cc b/gtk2_ardour/video_timeline.cc
index e31656ed3e..7354d091d9 100644
--- a/gtk2_ardour/video_timeline.cc
+++ b/gtk2_ardour/video_timeline.cc
@@ -723,7 +723,7 @@ VideoTimeLine::find_xjadeo () {
 	}
 
 	if (found_xjadeo ()) {
-		ARDOUR::SystemExec version_check(_xjadeo_bin, X_("--version"));
+		ARDOUR::SystemExec version_check (_xjadeo_bin, X_("--version"), true);
 		xjadeo_version = "";
 		version_check.ReadStdout.connect_same_thread (*this, boost::bind (&VideoTimeLine::xjadeo_readversion, this, _1 ,_2));
 		version_check.Terminated.connect_same_thread (*this, boost::bind (&VideoTimeLine::xjadeo_readversion, this, "\n" ,1));
@@ -792,7 +792,7 @@ VideoTimeLine::find_harvid () {
 	if (harvid_bin.empty ()) {
 		return;
 	}
-	ARDOUR::SystemExec version_check(harvid_bin, X_("--version"));
+	ARDOUR::SystemExec version_check (harvid_bin, X_("--version"), true);
 	harvid_version = "";
 	version_check.ReadStdout.connect_same_thread (*this, boost::bind (&VideoTimeLine::harvid_readversion, this, _1 ,_2));
 	version_check.Terminated.connect_same_thread (*this, boost::bind (&VideoTimeLine::harvid_readversion, this, "\n" ,1));