diff --git a/lib/libc/stdio/fputs.c b/lib/libc/stdio/fputs.c
index 3b8f2c9d1b68..32e57645f56a 100644
--- a/lib/libc/stdio/fputs.c
+++ b/lib/libc/stdio/fputs.c
@@ -55,7 +55,7 @@ fputs(const char * __restrict s, FILE * __restrict fp)
 	struct __siov iov;
 
 	iov.iov_base = (void *)s;
-	iov.iov_len = uio.uio_resid = strlen(s);
+	uio.uio_resid = iov.iov_len = strlen(s);
 	uio.uio_iov = &iov;
 	uio.uio_iovcnt = 1;
 	FLOCKFILE(fp);
diff --git a/lib/libc/stdio/puts.c b/lib/libc/stdio/puts.c
index 5ee7fc1c63f0..124afc73d600 100644
--- a/lib/libc/stdio/puts.c
+++ b/lib/libc/stdio/puts.c
@@ -51,12 +51,12 @@ int
 puts(char const *s)
 {
 	int retval;
-	size_t c = strlen(s);
+	size_t c;
 	struct __suio uio;
 	struct __siov iov[2];
 
 	iov[0].iov_base = (void *)s;
-	iov[0].iov_len = c;
+	iov[0].iov_len = c = strlen(s);
 	iov[1].iov_base = "\n";
 	iov[1].iov_len = 1;
 	uio.uio_resid = c + 1;