diff --git a/src/driver/genpsi.c b/src/driver/genpsi.c
index 966a27eac..381f0ac50 100644
--- a/src/driver/genpsi.c
+++ b/src/driver/genpsi.c
@@ -234,13 +234,13 @@ int genpsi(int fd2)
 //-- calculate CRC --
 	calc_crc32psi(&pkt[data_len], &pkt[OFS_HDR_2], data_len-OFS_HDR_2 );
 //-- write TS packet --
-//	bytes += write(fd2, pkt, SIZE_TS_PKT);
+	/*bytes +=*/ write(fd2, pkt, SIZE_TS_PKT);
 //-- (II) build PAT --
 	data_len = COPY_TEMPLATE(pkt, pkt_pat);
 //-- calculate CRC --
 	calc_crc32psi(&pkt[data_len], &pkt[OFS_HDR_2], data_len-OFS_HDR_2 );
 //-- write TS packet --
-//	bytes += write(fd2, pkt, SIZE_TS_PKT);
+	/*bytes +=*/ write(fd2, pkt, SIZE_TS_PKT);
 
 //-- (III) build PMT --
 	data_len = COPY_TEMPLATE(pkt, pkt_pmt);
@@ -274,7 +274,7 @@ int genpsi(int fd2)
 //-- calculate CRC --
 	calc_crc32psi(&pkt[data_len], &pkt[OFS_HDR_2], data_len-OFS_HDR_2 );
 //-- write TS packet --
-//	bytes += write(fd2, pkt, SIZE_TS_PKT);
+	/*bytes +=*/ write(fd2, pkt, SIZE_TS_PKT);
 //-- finish --
 	avPids.vpid=0;
 	avPids.nba=0;