diff --git a/Kernel/API/Syscall.h b/Kernel/API/Syscall.h
index 97e8729b0ff..223a816c914 100644
--- a/Kernel/API/Syscall.h
+++ b/Kernel/API/Syscall.h
@@ -118,7 +118,7 @@ enum class NeedsBigProcessLock {
     S(jail_create, NeedsBigProcessLock::No)                \
     S(jail_attach, NeedsBigProcessLock::No)                \
     S(kill, NeedsBigProcessLock::No)                       \
-    S(kill_thread, NeedsBigProcessLock::Yes)               \
+    S(kill_thread, NeedsBigProcessLock::No)                \
     S(killpg, NeedsBigProcessLock::No)                     \
     S(link, NeedsBigProcessLock::No)                       \
     S(listen, NeedsBigProcessLock::No)                     \
diff --git a/Kernel/Syscalls/thread.cpp b/Kernel/Syscalls/thread.cpp
index 5ef2a87aa22..cedb1042884 100644
--- a/Kernel/Syscalls/thread.cpp
+++ b/Kernel/Syscalls/thread.cpp
@@ -169,7 +169,7 @@ ErrorOr<FlatPtr> Process::sys$join_thread(pid_t tid, Userspace<void**> exit_valu
 
 ErrorOr<FlatPtr> Process::sys$kill_thread(pid_t tid, int signal)
 {
-    VERIFY_PROCESS_BIG_LOCK_ACQUIRED(this);
+    VERIFY_NO_PROCESS_BIG_LOCK(this);
     TRY(require_promise(Pledge::thread));
 
     if (signal < 0 || signal >= NSIG)