Fix warning

1 files changed, 1 insertions, 1 deletions

diff --git a/ifo_dump.c b/ifo_dump.c
index 6e58591..63653c2 100644
--- a/ifo_dump.c
+++ b/ifo_dump.c
@@ -29,7 +29,7 @@
 
 static char *program_name;
 
-void usage(void)
+static void usage(void)
 {
   fprintf(stderr, "Usage: %s <dvd path> <title number>\n", program_name);
 }