diff --git a/src/AvTranscoder/transcoder/Transcoder.cpp b/src/AvTranscoder/transcoder/Transcoder.cpp
index 16705616..e5ae5f4f 100644
--- a/src/AvTranscoder/transcoder/Transcoder.cpp
+++ b/src/AvTranscoder/transcoder/Transcoder.cpp
@@ -345,7 +345,8 @@ InputFile* Transcoder::addInputFile( const std::string& filename, const size_t s
 
 	for( std::vector< InputFile* >::iterator it = _inputFiles.begin(); it != _inputFiles.end(); ++it )
 	{
-		if( ( (*it)->getFilename() == filename ) )
+		if( ( (*it)->getFilename() == filename ) &&
+			! (*it)->getStream( streamIndex ).isActivated() )
 		{
 			referenceFile = (*it);
 			LOG_DEBUG( "Get instance of InputFile from '" << filename << "'" )