diff --git a/src/cmd/ksh93/sh/parse.c b/src/cmd/ksh93/sh/parse.c

--- a/src/cmd/ksh93/sh/parse.c

+++ b/src/cmd/ksh93/sh/parse.c

@@ -742,7 +742,7 @@ static Shnode_t *funct(Lex_t *lexp)

 	register Shnode_t *t;

 	register int flag;

 	struct slnod *volatile slp=0;

-	Stak_t *savstak;

+	Stak_t *volatile savstak=0;

 	Sfoff_t	first, last;

 	struct functnod *volatile fp;

 	Sfio_t *iop;