diff --git a/rcb4/armh7interface.py b/rcb4/armh7interface.py
index b3b895bf..2189a75e 100644
--- a/rcb4/armh7interface.py
+++ b/rcb4/armh7interface.py
@@ -546,7 +546,9 @@ def search_worm_ids(self):
         for idx in range(max_sensor_num):
             worm = self.memory_cstruct(WormmoduleStruct, idx)
             if worm.module_type == 1:
-                indices.append(idx)
+                servo = self.memory_cstruct(ServoStruct, worm.servo_id)
+                if servo.rotation == 1:
+                    indices.append(idx)
         self.worm_sorted_ids = indices
         return indices
 
diff --git a/rcb4/data/__init__.py b/rcb4/data/__init__.py
index fc16e0dd..bd5668bc 100644
--- a/rcb4/data/__init__.py
+++ b/rcb4/data/__init__.py
@@ -16,7 +16,7 @@
 
 elf_infos = {
     'v0.6.2': ELFINFO(
-        'https://drive.google.com/uc?id=1quysoRGx92K0enHcBxITEAcUkZf2FCjk',  # NOQA
+        'https://github.com/iory/rcb4/releases/download/v0.6.2.elf/v0.6.2.elf',  # NOQA
         '9205b34ce4d81b87c4f11e6139f96b17')
 }