diff --git a/mbsebbs/ymrecv.c b/mbsebbs/ymrecv.c
index 6c24df8b..e24759e5 100644
--- a/mbsebbs/ymrecv.c
+++ b/mbsebbs/ymrecv.c
@@ -141,7 +141,7 @@ et_tu:
 	return TERROR;
     }
     sendline(ACK);
-    ioctl(1, TCFLSH, 0);
+//    ioctl(1, TCFLSH, 0);
     return OK;
 }
 
diff --git a/mbsebbs/zmmisc.c b/mbsebbs/zmmisc.c
index 022a870a..e3295d85 100644
--- a/mbsebbs/zmmisc.c
+++ b/mbsebbs/zmmisc.c
@@ -995,7 +995,6 @@ void canit(int fd)
     static char canistr[] = { 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 0 };
 
     Syslog('z', "%s: send canit to fd %d", protname(), fd);
-    ioctl(fd, TCFLSH, 0);
     write(fd, canistr, strlen(canistr));
     if (fd == 0)
 	write(1, canistr, strlen(canistr));
diff --git a/mbsebbs/zmsend.c b/mbsebbs/zmsend.c
index 5977cc3c..f25307bb 100644
--- a/mbsebbs/zmsend.c
+++ b/mbsebbs/zmsend.c
@@ -254,11 +254,13 @@ int getzrxinit(void)
 	    case ZRINIT:
 			Rxflags = 0377 & Rxhdr[ZF0];
 			Txfcs32 = (Wantfcs32 && (Rxflags & CANFC32));
-			int old = Zctlesc;
-			Zctlesc |= Rxflags & TESCCTL;
-			/* update table - was initialised to not escape */
-			if (Zctlesc && !old)
-			    zsendline_init();
+			{
+			    int old = Zctlesc;
+			    Zctlesc |= Rxflags & TESCCTL;
+			    /* update table - was initialised to not escape */
+			    if (Zctlesc && !old)
+			    	zsendline_init();
+			}
 			
 			Rxbuflen = (0377 & Rxhdr[ZP0])+((0377 & Rxhdr[ZP1])<<8);
 			if ( !(Rxflags & CANFDX))