1 files changed, 7 insertions, 4 deletions

diff --git a/coreutils/tee.c b/coreutils/tee.c
index b38801755..8a4128591 100644
--- a/coreutils/tee.c
+++ b/coreutils/tee.c
@@ -50,10 +50,13 @@ int tee_main(int argc, char **argv)
         files[0] = stdout;
         goto GOT_NEW_FILE;
         do {
-                *fp = fopen_or_warn(*argv, mode);
-                if (*fp == NULL) {
-                        retval = EXIT_FAILURE;
-                        continue;
+                *fp = stdout;
+                if (NOT_LONE_DASH(*argv)) {
+                        *fp = fopen_or_warn(*argv, mode);
+                        if (*fp == NULL) {
+                                retval = EXIT_FAILURE;
+                                continue;
+                        }
                 }
                 *np = *argv++;
  GOT_NEW_FILE: