1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/isdn/hisax/hisax.h b/drivers/isdn/hisax/hisax.h
index 3cd8d5ba239b..34733c903df7 100644
--- a/drivers/isdn/hisax/hisax.h
+++ b/drivers/isdn/hisax/hisax.h
@@ -202,7 +202,7 @@ struct Layer1 {
         void *hardware;
         struct BCState *bcs;
         struct PStack **stlistp;
-        long Flags;
+        unsigned long Flags;
         struct FsmInst l1m;
         struct FsmTimer timer;
         void (*l1l2) (struct PStack *, int, void *);