diff --git a/tag-dropdown-widget.php b/tag-dropdown-widget.php
index c56f8b317d3f1c266f1f0af81726ef5e26930687..c5d893f0eb840e06f94140f86bf27b9094491bd7 100644
--- a/tag-dropdown-widget.php
+++ b/tag-dropdown-widget.php
@@ -191,7 +191,7 @@ class taxonomy_dropdown_widget_plugin {
 		}
 
 		if ( ! empty( $options['incexc_ids'] ) ) {
-			$terms_options[ $incexc ] = $options['incexc_ids'];
+			$terms_options[ $options['incexc'] ] = $options['incexc_ids'];
 		}
 
 		$terms_options = apply_filters( 'taxonomy_dropdown_widget_options', $terms_options, $id );