diff --git a/gs232a/gs232a.c b/gs232a/gs232a.c
index 6415c3d02..0b317e5e1 100644
--- a/gs232a/gs232a.c
+++ b/gs232a/gs232a.c
@@ -84,7 +84,6 @@ transaction_write:
     if (!data_len)
         data_len = BUFSZ;
 
-    memset(data,0,data_len);
     retval = read_string(&rs->rotport, data, data_len, REPLY_EOM, strlen(REPLY_EOM));
     if (retval < 0) {
         if (retry_read++ < rot->state.rotport.retry)
diff --git a/gs232a/gs232b.c b/gs232a/gs232b.c
index ba87ec64b..b7002b3ac 100644
--- a/gs232a/gs232b.c
+++ b/gs232a/gs232b.c
@@ -101,7 +101,6 @@ transaction_write:
     data_len = BUFSZ;
   }
 
-  memset(data, 0, data_len);
   retval =
     read_string(&rs->rotport, data, data_len, REPLY_EOM, strlen(REPLY_EOM));