diff --git a/src/components/PDFView/PDFPasswordForm.js b/src/components/PDFView/PDFPasswordForm.js
index 92c7dabb2fe3..17ab1b0a99d5 100644
--- a/src/components/PDFView/PDFPasswordForm.js
+++ b/src/components/PDFView/PDFPasswordForm.js
@@ -106,6 +106,10 @@ class PDFPasswordForm extends Component {
                         </View>
                         <TextInput
                             label={this.props.translate('common.password')}
+                            /**
+                             * This is a workaround to bypass Safari's autofill odd behaviour.
+                             * This tricks the browser not to fill the username somewhere else and still fill the password correctly.
+                             */
                             autoComplete={Browser.getBrowser() === CONST.BROWSER.SAFARI ? 'username' : 'off'}
                             autoCorrect={false}
                             textContentType="password"