diff --git a/mmd_tools/core/vmd/importer.py b/mmd_tools/core/vmd/importer.py
index 824caaaf..dd4ea82c 100644
--- a/mmd_tools/core/vmd/importer.py
+++ b/mmd_tools/core/vmd/importer.py
@@ -471,7 +471,7 @@ class _Dummy: pass
                     bone = pose_bones.get(ikName, None)
                     if not bone:
                         continue
-
+                    bone.mmd_ik_toggle = enable
                     self.__keyframe_insert(action.fcurves, f'pose.bones["{bone.name}"].mmd_ik_toggle', frame, enable)
 
         self.__assign_action(armObj, action)