diff --git a/doc/classes/Mutex.xml b/doc/classes/Mutex.xml
index 793696321be..8a294425e6c 100644
--- a/doc/classes/Mutex.xml
+++ b/doc/classes/Mutex.xml
@@ -7,6 +7,7 @@
A synchronization mutex (mutual exclusion). This is used to synchronize multiple [Thread]s, and is equivalent to a binary [Semaphore]. It guarantees that only one thread can ever acquire the lock at a time. A mutex can be used to protect a critical section; however, be careful to avoid deadlocks.
+ https://docs.godotengine.org/en/latest/tutorials/threads/using_multiple_threads.html
diff --git a/doc/classes/Semaphore.xml b/doc/classes/Semaphore.xml
index 7aee5c29518..74970be8b4d 100644
--- a/doc/classes/Semaphore.xml
+++ b/doc/classes/Semaphore.xml
@@ -7,6 +7,7 @@
A synchronization semaphore which can be used to synchronize multiple [Thread]s. Initialized to zero on creation. Be careful to avoid deadlocks. For a binary version, see [Mutex].
+ https://docs.godotengine.org/en/latest/tutorials/threads/using_multiple_threads.html
diff --git a/doc/classes/Thread.xml b/doc/classes/Thread.xml
index 8f96ab0aeda..25e40d4c1f1 100644
--- a/doc/classes/Thread.xml
+++ b/doc/classes/Thread.xml
@@ -7,6 +7,7 @@
A unit of execution in a process. Can run methods on [Object]s simultaneously. The use of synchronization via [Mutex] or [Semaphore] is advised if working with shared objects.
+ https://docs.godotengine.org/en/latest/tutorials/threads/using_multiple_threads.html