diff --git a/OP_expand_cycle_step.py b/OP_expand_cycle_step.py
index 050e832..1b3d8fb 100644
--- a/OP_expand_cycle_step.py
+++ b/OP_expand_cycle_step.py
@@ -126,7 +126,7 @@ def bake_cycle(on_selection=True):
     # C.scene.frame_current = org_frame
         # detect last key in contact
 
-
+# FIXME: need to use action offset fc instead of eval_time
 def step_path():
     '''Step the path anim of the curve to constant'''
     print(fn.helper())
@@ -213,7 +213,7 @@ class UAC_OT_bake_cycle_and_step(bpy.types.Operator):
             if curve:
                 act = fn.get_obj_action(curve.data)
                 if act:
-                    timef = next((fcu for fcu in act.fcurves if fcu.data_path == 'eval_time'), None)
+                    timef = next((fc for fc in act.fcurves if fc.data_path.endswith('.offset') and 'constraint' in fc.data_path), None)
                     if timef:
                         keys_ct = len(timef.keyframe_points)
                         if keys_ct > 2: