1 files changed, 2 insertions, 3 deletions

diff --git a/lib/libc/stdio/asprintf.c b/lib/libc/stdio/asprintf.c
index f14265179589..ed8698926f43 100644
--- a/lib/libc/stdio/asprintf.c
+++ b/lib/libc/stdio/asprintf.c
@@ -43,7 +43,6 @@ asprintf(char **str, char const *fmt, ...)
 	int ret;
 	va_list ap;
 	FILE f;
-	struct __sFILEX ext;
 
 	f._file = -1;
 	f._flags = __SWR | __SSTR | __SALC;
@@ -54,8 +53,8 @@ asprintf(char **str, char const *fmt, ...)
 		return (-1);
 	}
 	f._bf._size = f._w = 127;		/* Leave room for the NUL */
-	f._extra = &ext;
-	INITEXTRA(&f);
+	f._orientation = 0;
+	memset(&f._mbstate, 0, sizeof(mbstate_t));
 	va_start(ap, fmt);
 	ret = __vfprintf(&f, fmt, ap);		/* Use unlocked __vfprintf */
 	va_end(ap);