diff --git a/docker/initial-data.json b/docker/initial-data.json
index f39f25eec..bc8ba27f9 100644
--- a/docker/initial-data.json
+++ b/docker/initial-data.json
@@ -260,7 +260,7 @@
         "list_of_speakers_countdown_id": 1,
         "poll_countdown_id": 2,
 
-        "default_$_projector_id": [
+        "default_projector_$_id": [
             "agenda_all_items",
             "topics",
             "list_of_speakers",
@@ -277,21 +277,21 @@
             "motion_poll",
             "poll"
         ],
-        "default_$agenda_all_items_projector_id": 1,
-        "default_$topics_projector_id": 1,
-        "default_$list_of_speakers_projector_id": 1,
-        "default_$current_list_of_speakers_projector_id": 1,
-        "default_$motion_projector_id": 1,
-        "default_$amendment_projector_id": 1,
-        "default_$motion_block_projector_id": 1,
-        "default_$assignment_projector_id": 1,
-        "default_$user_projector_id": 1,
-        "default_$mediafile_projector_id": 1,
-        "default_$projector_message_projector_id": 1,
-        "default_$projector_countdowns_projector_id": 1,
-        "default_$assignment_poll_projector_id": 1,
-        "default_$motion_poll_projector_id": 1,
-        "default_$poll_projector_id": 1,
+        "default_projector_$agenda_all_items_id": 1,
+        "default_projector_$topics_id": 1,
+        "default_projector_$list_of_speakers_id": 1,
+        "default_projector_$current_list_of_speakers_id": 1,
+        "default_projector_$motion_id": 1,
+        "default_projector_$amendment_id": 1,
+        "default_projector_$motion_block_id": 1,
+        "default_projector_$assignment_id": 1,
+        "default_projector_$user_id": 1,
+        "default_projector_$mediafile_id": 1,
+        "default_projector_$projector_message_id": 1,
+        "default_projector_$projector_countdowns_id": 1,
+        "default_projector_$assignment_poll_id": 1,
+        "default_projector_$motion_poll_id": 1,
+        "default_projector_$poll_id": 1,
         "projection_ids": [],
 
         "default_group_id": 1,
diff --git a/docs/example-data.json b/docs/example-data.json
index 25543316a..2ce5f167e 100644
--- a/docs/example-data.json
+++ b/docs/example-data.json
@@ -404,7 +404,7 @@
         "list_of_speakers_countdown_id": 1,
         "poll_countdown_id": 2,
 
-        "default_$_projector_id": [
+        "default_projector_$_id": [
             "agenda_all_items",
             "topics",
             "list_of_speakers",
@@ -421,21 +421,21 @@
             "motion_poll",
             "poll"
         ],
-        "default_$agenda_all_items_projector_id": 1,
-        "default_$topics_projector_id": 1,
-        "default_$list_of_speakers_projector_id": 2,
-        "default_$current_list_of_speakers_projector_id": 2,
-        "default_$motion_projector_id": 1,
-        "default_$amendment_projector_id": 1,
-        "default_$motion_block_projector_id": 1,
-        "default_$assignment_projector_id": 1,
-        "default_$user_projector_id": 1,
-        "default_$mediafile_projector_id": 1,
-        "default_$projector_message_projector_id": 1,
-        "default_$projector_countdowns_projector_id": 1,
-        "default_$assignment_poll_projector_id": 1,
-        "default_$motion_poll_projector_id": 1,
-        "default_$poll_projector_id": 1,
+        "default_projector_$agenda_all_items_id": 1,
+        "default_projector_$topics_id": 1,
+        "default_projector_$list_of_speakers_id": 2,
+        "default_projector_$current_list_of_speakers_id": 2,
+        "default_projector_$motion_id": 1,
+        "default_projector_$amendment_id": 1,
+        "default_projector_$motion_block_id": 1,
+        "default_projector_$assignment_id": 1,
+        "default_projector_$user_id": 1,
+        "default_projector_$mediafile_id": 1,
+        "default_projector_$projector_message_id": 1,
+        "default_projector_$projector_countdowns_id": 1,
+        "default_projector_$assignment_poll_id": 1,
+        "default_projector_$motion_poll_id": 1,
+        "default_projector_$poll_id": 1,
         "projection_ids": [3],
 
         "default_group_id": 1,