diff --git a/scene/2d/physics/joints/joint_2d.cpp b/scene/2d/physics/joints/joint_2d.cpp
index 5f61bebbb108..c27511393efa 100644
--- a/scene/2d/physics/joints/joint_2d.cpp
+++ b/scene/2d/physics/joints/joint_2d.cpp
@@ -117,8 +117,12 @@ void Joint2D::_update_joint(bool p_only_free) {
 	ba = body_a->get_rid();
 	bb = body_b->get_rid();
 
-	body_a->connect(SceneStringName(tree_exiting), callable_mp(this, &Joint2D::_body_exit_tree));
-	body_b->connect(SceneStringName(tree_exiting), callable_mp(this, &Joint2D::_body_exit_tree));
+	if (!body_a->is_connected(SceneStringName(tree_exiting), callable_mp(this, &Joint2D::_body_exit_tree))) {
+		body_a->connect(SceneStringName(tree_exiting), callable_mp(this, &Joint2D::_body_exit_tree));
+	}
+	if (!body_b->is_connected(SceneStringName(tree_exiting), callable_mp(this, &Joint2D::_body_exit_tree))) {
+		body_b->connect(SceneStringName(tree_exiting), callable_mp(this, &Joint2D::_body_exit_tree));
+	}
 
 	PhysicsServer2D::get_singleton()->joint_disable_collisions_between_bodies(joint, exclude_from_collision);
 }
diff --git a/scene/3d/physics/joints/joint_3d.cpp b/scene/3d/physics/joints/joint_3d.cpp
index dac52a4dd8c3..88ae49beaaff 100644
--- a/scene/3d/physics/joints/joint_3d.cpp
+++ b/scene/3d/physics/joints/joint_3d.cpp
@@ -108,12 +108,16 @@ void Joint3D::_update_joint(bool p_only_free) {
 
 	if (body_a) {
 		ba = body_a->get_rid();
-		body_a->connect(SceneStringName(tree_exiting), callable_mp(this, &Joint3D::_body_exit_tree));
+		if (!body_a->is_connected(SceneStringName(tree_exiting), callable_mp(this, &Joint3D::_body_exit_tree))) {
+			body_a->connect(SceneStringName(tree_exiting), callable_mp(this, &Joint3D::_body_exit_tree));
+		}
 	}
 
 	if (body_b) {
 		bb = body_b->get_rid();
-		body_b->connect(SceneStringName(tree_exiting), callable_mp(this, &Joint3D::_body_exit_tree));
+		if (!body_b->is_connected(SceneStringName(tree_exiting), callable_mp(this, &Joint3D::_body_exit_tree))) {
+			body_b->connect(SceneStringName(tree_exiting), callable_mp(this, &Joint3D::_body_exit_tree));
+		}
 	}
 
 	PhysicsServer3D::get_singleton()->joint_disable_collisions_between_bodies(joint, exclude_from_collision);