diff --git a/includes/block-functions.php b/includes/block-functions.php
index 5f694ab..37b6f7e 100644
--- a/includes/block-functions.php
+++ b/includes/block-functions.php
@@ -635,12 +635,14 @@ function tumblr3_block_haspages( $atts, $content = '' ): string {
  * @return string
  */
 function tumblr3_block_showheaderimage( $atts, $content = '' ): string {
-	return ( 'remove-header' !== get_theme_mod( 'header_image', 'remove-header' ) ) ? tumblr3_do_shortcode( $content ) : '';
+	return ( get_theme_mod( 'show_header_image', true ) &&
+		'remove-header' !== get_theme_mod( 'header_image', 'remove-header' ) )
+		? tumblr3_do_shortcode( $content ) : '';
 }
 add_shortcode( 'block_showheaderimage', 'tumblr3_block_showheaderimage' );
 
 /**
- * Rendered if you have "Show header image" disabled.
+ * Rendered if you have     "Show header image" disabled.
  *
  * @param array  $atts    The attributes of the shortcode.
  * @param string $content The content of the shortcode.
@@ -648,7 +650,9 @@ function tumblr3_block_showheaderimage( $atts, $content = '' ): string {
  * @return string
  */
 function tumblr3_block_hideheaderimage( $atts, $content = '' ): string {
-	return ( 'remove-header' === get_theme_mod( 'header_image', 'remove-header' ) ) ? tumblr3_do_shortcode( $content ) : '';
+	return ( ! get_theme_mod( 'show_header_image', true ) ||
+		'remove-header' === get_theme_mod( 'header_image', 'remove-header' ) )
+		? tumblr3_do_shortcode( $content ) : '';
 }
 add_shortcode( 'block_hideheaderimage', 'tumblr3_block_hideheaderimage' );
 
diff --git a/src/Customizer.php b/src/Customizer.php
index 3bb1c24..e7746e0 100644
--- a/src/Customizer.php
+++ b/src/Customizer.php
@@ -228,6 +228,25 @@ public function global_options( $wp_customize ): void {
 			)
 		);
 
+		// Add a show header image checkbox control.
+		$wp_customize->add_setting(
+			'show_header_image',
+			array(
+				'default'           => 'yes',
+				'sanitize_callback' => 'sanitize_text_field',
+			)
+		);
+
+		$wp_customize->add_control(
+			'show_header_image',
+			array(
+				'label'    => __( 'Show Header Image', 'tumblr3' ),
+				'section'  => 'tumblr3_boolean',
+				'type'     => 'checkbox',
+				'priority' => 10,
+			)
+		);
+
 		// Add a stretch header image checkbox control.
 		$wp_customize->add_setting(
 			'stretch_header_image',