1 files changed, 1 insertions, 1 deletions

diff --git a/procps/pidof.c b/procps/pidof.c
index 86d1957a6..46e646d6e 100644
--- a/procps/pidof.c
+++ b/procps/pidof.c
@@ -17,7 +17,7 @@ enum {
 };
 
 int pidof_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
-int pidof_main(int argc, char **argv)
+int pidof_main(int argc ATTRIBUTE_UNUSED, char **argv)
 {
         unsigned first = 1;
         unsigned opt;