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-rw-r--r--posix/tst-preadwrite.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/posix/tst-preadwrite.c b/posix/tst-preadwrite.c
index 2810448583..8227a8205b 100644
--- a/posix/tst-preadwrite.c
+++ b/posix/tst-preadwrite.c
@@ -53,7 +53,7 @@ int fd;
 void
 do_prepare (int argc, char *argv[])
 {
-   char name_len;
+   size_t name_len;
 
 #define FNAME FNAME2(TRUNCATE)
 #define FNAME2(s) "/" STRINGIFY(s) "XXXXXX"