diff --git a/linphone/mediastreamer2/src/winsndds.cpp b/linphone/mediastreamer2/src/winsndds.cpp
index 61bf81393363c23a2b587a0099f439c0ead90299..d1eb24135ca8da5d31ad13c79a854e87ca7d40b7 100644
--- a/linphone/mediastreamer2/src/winsndds.cpp
+++ b/linphone/mediastreamer2/src/winsndds.cpp
@@ -729,7 +729,6 @@ static void winsndds_write_preprocess(MSFilter *f){
 		for(it=filters;it!=NULL;it=it->next)
 		{
 			MSFilter *f_tmp = (MSFilter*)it->data;
-			f_tmp->seen = FALSE;
 			if (f_tmp->desc->id == MS_WINSNDDS_READ_ID)
 			{
 				/* found */