diff --git a/README.md b/README.md
index 4b63968..a828829 100644
--- a/README.md
+++ b/README.md
@@ -49,6 +49,9 @@ If you're not using any of the supported plugins and theme, you can write the cu
 
 ## Changelog ##
 
+### 1.0.19 ###
+- Fix: Resolved option group markup issue for the font list in Astra customizer font control.
+
 ### 1.0.18 ###
 - Fix: Fixed compatibility with other plugins with respect to the admin notice.
 
diff --git a/classes/class-custom-typekit-fonts-render.php b/classes/class-custom-typekit-fonts-render.php
index 4b6f42e..de83cf7 100644
--- a/classes/class-custom-typekit-fonts-render.php
+++ b/classes/class-custom-typekit-fonts-render.php
@@ -208,6 +208,7 @@ public function add_customizer_font_list( $value ) {
 				foreach ( $kit_list['custom-typekit-font-details'] as $font => $properties ) {
 					echo '<option value="\'' . esc_attr( $font ) . '\',' . esc_attr( $properties['fallback'] ) . '" ' . selected( $font, $value, false ) . '>' . esc_html( $font ) . '</option>';
 				}
+				echo '</optgroup>';
 			}
 		}
 
diff --git a/readme.txt b/readme.txt
index fcd78b8..8160f7a 100644
--- a/readme.txt
+++ b/readme.txt
@@ -51,6 +51,9 @@ If you're not using any of the supported plugins and theme, you can write the cu
 
 == Changelog ==
 
+= 1.0.19 =
+- Fix: Resolved option group markup issue for the font list in Astra customizer font control.
+
 = 1.0.18 =
 - Fix: Fixed compatibility with other plugins with respect to the admin notice.