diff --git a/[refs] b/[refs]
index f30ccddabf0c..91a86d0018f0 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 1bcc69fb6a48edb3ddf2e8c42f1d1c242196bf74
+refs/heads/master: a8461c0f3bfffe752fc62ce3960eb827463e90b5
diff --git a/trunk/tools/firewire/nosy-dump.c b/trunk/tools/firewire/nosy-dump.c
index 0bad0a42d772..1d4dd5439d43 100644
--- a/trunk/tools/firewire/nosy-dump.c
+++ b/trunk/tools/firewire/nosy-dump.c
@@ -230,6 +230,11 @@ handle_transaction(struct link_transaction *t)
   struct subaction *sa;
   int i;
 
+  if (!t->request) {
+    printf("BUG in handle_transaction\n");
+    return;
+  }
+
   for (i = 0; i < array_length(protocol_decoders); i++)
     if (protocol_decoders[i].decode(t))
       break;