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-rw-r--r--ext/POSIX/t/sysconf.t2
1 files changed, 1 insertions, 1 deletions
diff --git a/ext/POSIX/t/sysconf.t b/ext/POSIX/t/sysconf.t
index f23e0d3b3b..29cf20f210 100644
--- a/ext/POSIX/t/sysconf.t
+++ b/ext/POSIX/t/sysconf.t
@@ -110,7 +110,7 @@ SKIP: {
-c $TTY
or skip("$TTY not a character file", $n);
- open(TTY, $TTY)
+ open(TTY, '<', $TTY)
or skip("failed to open $TTY: $!", $n);
-t TTY
or skip("TTY ($TTY) not a terminal file", $n);