diff --git a/en/application-dev/application-models/inputmethodextentionability.md b/en/application-dev/application-models/inputmethodextentionability.md
index 9a025339cab6a5f555fd61b15597400b31affeb7..8a7856f402bf30b1610521e3cf05dda7145c3509 100644
--- a/en/application-dev/application-models/inputmethodextentionability.md
+++ b/en/application-dev/application-models/inputmethodextentionability.md
@@ -33,7 +33,7 @@ In the **ets** directory of the target module, right-click and choose **New** >
 
 > **NOTE**
 > 
-> When compiling the input method application, use the signature at the system_core level. Otherwise, the application will not be able to start the keyboard.
+> When compiling the input method application, use the signature at the system_basic level. Otherwise, the application will not be able to start the keyboard.
 
 The minimum template implements an input method application with the most basic features, such as starting the keyboard, entering text, and deleting input. You can diversify the feature set of the application by, for example, adding the feature to hide the keyboard.