1 files changed, 3 insertions, 1 deletions

diff --git a/src/firemon/firemon.c b/src/firemon/firemon.c
index e5f1b6f9a..b3c435d9e 100644
--- a/src/firemon/firemon.c
+++ b/src/firemon/firemon.c
@@ -83,7 +83,9 @@ int find_child(int id) {
                         return i;
         }
 
-        return -1;
+        // if a second child is not found, return the first child pid
+        // this happens for processes sandboxed with --join
+        return first_child;
 }
 
 // sleep and wait for a key to be pressed