diff --git a/libtdepim/kxface.h b/libtdepim/kxface.h
index d6a235d8..7d472560 100644
--- a/libtdepim/kxface.h
+++ b/libtdepim/kxface.h
@@ -565,7 +565,7 @@ namespace KPIM {
 
       void RevPush(const Prob *p);
       void BigPush(Prob *p);
-      int  BigPop(register const Prob *p);
+      int  BigPop(const Prob *p);
       void BigDiv(unsigned char a, unsigned char *r);
       void BigMul(unsigned char a);
       void BigAdd(unsigned char a);