diff --git a/src/zm_mpeg.cpp b/src/zm_mpeg.cpp
index 2e29880ca..e3e544e73 100644
--- a/src/zm_mpeg.cpp
+++ b/src/zm_mpeg.cpp
@@ -109,7 +109,7 @@ void VideoStream::SetupFormat( )
 	
 	if(filename)
 	{
-		snprintf( s->filename, sizeof(s->filename), filename );
+		snprintf( s->filename, sizeof(s->filename), "%s", filename );
 	}
 	
 	ofc = s;