1 files changed, 2 insertions, 2 deletions

diff --git a/src/firemon/tree.c b/src/firemon/tree.c
index f6d22b517..6d8b37ecb 100644
--- a/src/firemon/tree.c
+++ b/src/firemon/tree.c
@@ -19,8 +19,8 @@
 */
 #include "firemon.h"
 
-void tree(void) {
-        pid_read(0);    // include all processes
+void tree(pid_t pid) {
+        pid_read(pid);
         
         // print processes
         int i;