diff --git a/hw/sd.c b/hw/sd.c
index 3c34d43ad4..607edba9c8 100644
--- a/hw/sd.c
+++ b/hw/sd.c
@@ -1439,8 +1439,8 @@ send_response:
         int i;
         DPRINTF("Response:");
         for (i = 0; i < rsplen; i++)
-            printf(" %02x", response[i]);
-        printf(" state %d\n", sd->state);
+            fprintf(stderr, " %02x", response[i]);
+        fprintf(stderr, " state %d\n", sd->state);
     } else {
         DPRINTF("No response %d\n", sd->state);
     }