diff --git a/yuhao_pinyin.schema.yaml b/yuhao_pinyin.schema.yaml
index 7b5f1cb..d82945d 100644
--- a/yuhao_pinyin.schema.yaml
+++ b/yuhao_pinyin.schema.yaml
@@ -75,6 +75,7 @@ punctuator:
     "|": "|"
 
 key_binder:
+  import_preset: default
   bindings:
     - { when: always, accept: "Control+period", toggle: ascii_punct }
     - { when: always, accept: "Control+Shift+period", toggle: ascii_punct }
diff --git a/yustar.schema.yaml b/yustar.schema.yaml
index 96aaded..5f1adaf 100644
--- a/yustar.schema.yaml
+++ b/yustar.schema.yaml
@@ -307,6 +307,7 @@ punctuator:
     "|": "|"
 
 key_binder:
+  import_preset: default
   bindings:
     - { when: always, accept: "Control+period", toggle: ascii_punct }
     - { when: always, accept: "Control+Shift+period", toggle: ascii_punct }
diff --git a/yustar_sc.schema.yaml b/yustar_sc.schema.yaml
index c2019b6..5a255ea 100644
--- a/yustar_sc.schema.yaml
+++ b/yustar_sc.schema.yaml
@@ -301,6 +301,7 @@ punctuator:
     "|": "|"
 
 key_binder:
+  import_preset: default
   bindings:
     - { when: always, accept: "Control+period", toggle: ascii_punct }
     - { when: always, accept: "Control+Shift+period", toggle: ascii_punct }
diff --git a/yustar_tw.schema.yaml b/yustar_tw.schema.yaml
index aa9bfdd..e08e66e 100644
--- a/yustar_tw.schema.yaml
+++ b/yustar_tw.schema.yaml
@@ -298,6 +298,7 @@ punctuator:
     "|": "|"
 
 key_binder:
+  import_preset: default
   bindings:
     - { when: always, accept: "Control+period", toggle: ascii_punct }
     - { when: always, accept: "Control+Shift+period", toggle: ascii_punct }