diff --git a/lib/libc/stdio/findfp.c b/lib/libc/stdio/findfp.c
index 84b6703c52b..5538a57260b 100644
--- a/lib/libc/stdio/findfp.c
+++ b/lib/libc/stdio/findfp.c
@@ -69,7 +69,7 @@ static struct glue uglue = { NULL, FOPEN_MAX - 3, usual };
 
 static struct __sFILEX __sFX[3];
 
-FILE __sF[3] = {
+static FILE __sF[3] = {
 	std(__SRD, STDIN_FILENO),
 	std(__SWR, STDOUT_FILENO),
 	std(__SWR|__SNBF, STDERR_FILENO)