diff --git a/src/stdio/fwide.c b/src/stdio/fwide.c
index fdf8e4bb334706ad8e4d2f911de30876e50b3bd4..8088e7ad4311f116a579c998f7aa4bee3e3e85c7 100644
--- a/src/stdio/fwide.c
+++ b/src/stdio/fwide.c
@@ -7,7 +7,8 @@
 int fwide(FILE *f, int mode)
 {
 	FLOCK(f);
-	if (!f->mode) mode = f->mode = NORMALIZE(mode);
+	if (!f->mode) f->mode = NORMALIZE(mode);
+	mode = f->mode;
 	FUNLOCK(f);
 	return mode;
 }