1 files changed, 2 insertions, 2 deletions

diff --git a/src/firemon/netstats.c b/src/firemon/netstats.c
index ad123be50..c68e2e51b 100644
--- a/src/firemon/netstats.c
+++ b/src/firemon/netstats.c
@@ -161,8 +161,8 @@ static void print_proc(int index, int itv, int col) {
         }
 
         // pid
-        char pidstr[10];
-        snprintf(pidstr, 10, "%u", index);
+        char pidstr[11];
+        snprintf(pidstr, 11, "%d", index);
 
         // user
         char *user = get_user_name(pids[index].uid);