1 files changed, 1 insertions, 1 deletions

diff --git a/src/firemon/firemon.c b/src/firemon/firemon.c
index 3a35e98ce..99ce179a8 100644
--- a/src/firemon/firemon.c
+++ b/src/firemon/firemon.c
@@ -233,7 +233,7 @@ int main(int argc, char **argv) {
                 return 0;
         }
         if (arg_tree) {
-                tree(0);
+                tree(pid);
                 return 0;
         }