diff --git a/lib/libc/stdio/fflush.c b/lib/libc/stdio/fflush.c
index a7f9348def50..7ad6adedf53f 100644
--- a/lib/libc/stdio/fflush.c
+++ b/lib/libc/stdio/fflush.c
@@ -104,10 +104,10 @@ int
 __sflush(FILE *fp)
 {
 	unsigned char *p, *old_p;
-	int n, t, old_w;
+	int n, f, t, old_w;
 
-	t = fp->_flags;
-	if ((t & __SWR) == 0)
+	f = fp->_flags;
+	if ((f & __SWR) == 0)
 		return (0);
 
 	if ((p = fp->_bf._base) == NULL)
@@ -122,7 +122,7 @@ __sflush(FILE *fp)
 	old_p = fp->_p;
 	fp->_p = p;
 	old_w = fp->_w;
-	fp->_w = t & (__SLBF|__SNBF) ? 0 : fp->_bf._size;
+	fp->_w = f & (__SLBF|__SNBF) ? 0 : fp->_bf._size;
 
 	for (; n > 0; n -= t, p += t) {
 		t = _swrite(fp, (char *)p, n);