diff --git a/rtengine/simpleprocess.cc b/rtengine/simpleprocess.cc
index ffdff6162..72a07a617 100644
--- a/rtengine/simpleprocess.cc
+++ b/rtengine/simpleprocess.cc
@@ -28,6 +28,7 @@
 #include <iostream>
 #include "rawimagesource.h"
 #include "../rtgui/ppversion.h"
+#include "../rtgui/multilangmgr.h"
 //#include "mytime.h"
 
 #undef THREAD_PRIORITY_NORMAL
@@ -682,7 +683,7 @@ void batchProcessingThread (ProcessingJob* job, BatchProcessingListener* bpl, bo
         int errorCode;
         IImage16* img = processImage (currentJob, errorCode, bpl, tunnelMetaData);
         if (errorCode) {
-            bpl->error ("Can not load input image.");
+            bpl->error (M("MAIN_MSG_CANNOTLOAD"));
             currentJob = NULL;
         } else {
             try {
diff --git a/rtgui/batchqueue.cc b/rtgui/batchqueue.cc
index 37365e72e..2ed7055e8 100644
--- a/rtgui/batchqueue.cc
+++ b/rtgui/batchqueue.cc
@@ -594,7 +594,7 @@ rtengine::ProcessingJob* BatchQueue::imageReady (rtengine::IImage16* img) {
             err = img->saveAsJPEG (fname, saveFormat.jpegQuality, saveFormat.jpegSubSamp);
         img->free ();
 
-        if (err) throw Glib::FileError(Glib::FileError::FAILED, "Unable to save output file");
+        if (err) throw Glib::FileError(Glib::FileError::FAILED, M("MAIN_MSG_CANNOTSAVE"));
 
         if (saveFormat.saveParams) {
             // We keep the extension to avoid overwriting the profile when we have