diff --git a/control/nodes.py b/control/nodes.py
index edaa220..c7a01ab 100644
--- a/control/nodes.py
+++ b/control/nodes.py
@@ -19,9 +19,9 @@ class TimestepKeyframeNode:
         return {
             "required": {
                 "start_percent": ("FLOAT", {"default": 0.0, "min": 0.0, "max": 1.0, "step": 0.001}, ),
-                "strength": ("FLOAT", {"default": 1.0, "min": 0.0, "max": 10.0, "step": 0.001}, ),
             },
             "optional": {
+                "strength": ("FLOAT", {"default": 1.0, "min": 0.0, "max": 10.0, "step": 0.001}, ),
                 "control_net_weights": ("CONTROL_NET_WEIGHTS", ),
                 "latent_keyframe": ("LATENT_KEYFRAME", ),
                 "prev_timestep_keyframe": ("TIMESTEP_KEYFRAME", ),