diff --git a/drivers/ieee1394/nodemgr.c b/drivers/ieee1394/nodemgr.c
index e2ca8e92f43fb27584afcbb5274eaa21395aa1cf..640d677ae03e3d877d4dca60fa1ca163d905572d 100644
--- a/drivers/ieee1394/nodemgr.c
+++ b/drivers/ieee1394/nodemgr.c
@@ -362,7 +362,7 @@ static ssize_t fw_show_ne_tlabels_mask(struct device *dev,
 #endif
 	spin_unlock_irqrestore(&hpsb_tlabel_lock, flags);
 
-	return sprintf(buf, "0x%016llx\n", tm);
+	return sprintf(buf, "0x%016llx\n", (unsigned long long)tm);
 }
 static DEVICE_ATTR(tlabels_mask, S_IRUGO, fw_show_ne_tlabels_mask, NULL);
 #endif /* HPSB_DEBUG_TLABELS */