diff --git a/Kernel/Process.cpp b/Kernel/Process.cpp
index 5dee5358b5d..3f81dd5f2d9 100644
--- a/Kernel/Process.cpp
+++ b/Kernel/Process.cpp
@@ -1615,7 +1615,7 @@ pid_t Process::sys$setsid()
     bool found_process_with_same_pgid_as_my_pid = false;
     Process::for_each_in_pgrp(pid(), [&](auto&) {
         found_process_with_same_pgid_as_my_pid = true;
-        return false;
+        return IterationDecision::Break;
     });
     if (found_process_with_same_pgid_as_my_pid)
         return -EPERM;
diff --git a/Kernel/Process.h b/Kernel/Process.h
index d09f3d7f1a1..919df12f567 100644
--- a/Kernel/Process.h
+++ b/Kernel/Process.h
@@ -456,7 +456,7 @@ inline void Process::for_each_in_pgrp(pid_t pgid, Callback callback)
     for (auto* process = g_processes->head(); process;) {
         auto* next_process = process->next();
         if (process->pgid() == pgid) {
-            if (!callback(*process))
+            if (callback(*process) == IterationDecision::Break)
                 break;
         }
         process = next_process;
diff --git a/Kernel/TTY/TTY.cpp b/Kernel/TTY/TTY.cpp
index 5a9acc4f40d..f3931a43eda 100644
--- a/Kernel/TTY/TTY.cpp
+++ b/Kernel/TTY/TTY.cpp
@@ -89,7 +89,7 @@ void TTY::generate_signal(int signal)
     Process::for_each_in_pgrp(pgid(), [&](auto& process) {
         dbgprintf("%s: Send signal %d to %d\n", tty_name().characters(), signal, process.pid());
         process.send_signal(signal, nullptr);
-        return true;
+        return IterationDecision::Continue;
     });
 }