diff --git a/qemu-char.c b/qemu-char.c
index faaf624..00ded76 100644
--- a/qemu-char.c
+++ b/qemu-char.c
@@ -404,6 +404,8 @@ static int mux_chr_can_read(void *opaque)
     MuxDriver *d = chr->opaque;
     int m = d->focus;
 
+    mux_chr_accept_input(opaque);
+
     if ((d->prod[m] - d->cons[m]) < MUX_BUFFER_SIZE)
         return 1;
     if (d->chr_can_read[m])
@@ -418,8 +420,6 @@ static void mux_chr_read(void *opaque, const uint8_t *buf, int size)
     int m = d->focus;
     int i;
 
-    mux_chr_accept_input (opaque);
-
     for(i = 0; i < size; i++)
         if (mux_proc_byte(chr, d, buf[i])) {
             if (d->prod[m] == d->cons[m] &&