diff --git a/docs/apis/subsystems/form/index.md b/docs/apis/subsystems/form/index.md
index 1df2b9b8e7..f16a9337eb 100644
--- a/docs/apis/subsystems/form/index.md
+++ b/docs/apis/subsystems/form/index.md
@@ -230,7 +230,7 @@ public function add_action_buttons(
 
 :::important
 
-The `add_action_buttons` function is defined on `moodlform` class, and not a part of `$this->_form`, for example:
+The `add_action_buttons` function is defined on the `moodleform` class, and not a part of `$this->_form`, for example:
 
 ```php
     public function definition() {
diff --git a/versioned_docs/version-4.1/apis/subsystems/form/index.md b/versioned_docs/version-4.1/apis/subsystems/form/index.md
index 4b9b92bee7..204a700041 100644
--- a/versioned_docs/version-4.1/apis/subsystems/form/index.md
+++ b/versioned_docs/version-4.1/apis/subsystems/form/index.md
@@ -228,7 +228,7 @@ public function add_action_buttons(
 
 :::important
 
-The `add_action_buttons` function is defined on `moodlform` class, and not a part of `$this->_form`, for example:
+The `add_action_buttons` function is defined on the `moodleform` class, and not a part of `$this->_form`, for example:
 
 ```php
     public function definition() {
diff --git a/versioned_docs/version-4.3/apis/subsystems/form/index.md b/versioned_docs/version-4.3/apis/subsystems/form/index.md
index 165942784d..29046e52a2 100644
--- a/versioned_docs/version-4.3/apis/subsystems/form/index.md
+++ b/versioned_docs/version-4.3/apis/subsystems/form/index.md
@@ -228,7 +228,7 @@ public function add_action_buttons(
 
 :::important
 
-The `add_action_buttons` function is defined on `moodlform` class, and not a part of `$this->_form`, for example:
+The `add_action_buttons` function is defined on the `moodleform` class, and not a part of `$this->_form`, for example:
 
 ```php
     public function definition() {
diff --git a/versioned_docs/version-4.4/apis/subsystems/form/index.md b/versioned_docs/version-4.4/apis/subsystems/form/index.md
index 1df2b9b8e7..f16a9337eb 100644
--- a/versioned_docs/version-4.4/apis/subsystems/form/index.md
+++ b/versioned_docs/version-4.4/apis/subsystems/form/index.md
@@ -230,7 +230,7 @@ public function add_action_buttons(
 
 :::important
 
-The `add_action_buttons` function is defined on `moodlform` class, and not a part of `$this->_form`, for example:
+The `add_action_buttons` function is defined on the `moodleform` class, and not a part of `$this->_form`, for example:
 
 ```php
     public function definition() {
diff --git a/versioned_docs/version-4.5/apis/subsystems/form/index.md b/versioned_docs/version-4.5/apis/subsystems/form/index.md
index 1df2b9b8e7..f16a9337eb 100644
--- a/versioned_docs/version-4.5/apis/subsystems/form/index.md
+++ b/versioned_docs/version-4.5/apis/subsystems/form/index.md
@@ -230,7 +230,7 @@ public function add_action_buttons(
 
 :::important
 
-The `add_action_buttons` function is defined on `moodlform` class, and not a part of `$this->_form`, for example:
+The `add_action_buttons` function is defined on the `moodleform` class, and not a part of `$this->_form`, for example:
 
 ```php
     public function definition() {