diff --git a/linphone/mediastreamer2/src/theora.c b/linphone/mediastreamer2/src/theora.c
index 1ab543278..4f043254c 100644
--- a/linphone/mediastreamer2/src/theora.c
+++ b/linphone/mediastreamer2/src/theora.c
@@ -352,6 +352,7 @@ static void enc_process(MSFilter *f){
 			}
 		}
 		freemsg(im);
+		s->nframes++;
 	}
 }