diff --git a/web/modules/custom/geo_citation/geo_citation.module b/web/modules/custom/geo_citation/geo_citation.module
index ec35b2d..3125819 100644
--- a/web/modules/custom/geo_citation/geo_citation.module
+++ b/web/modules/custom/geo_citation/geo_citation.module
@@ -63,9 +63,15 @@ function geo_citation_theme($existing, $type, $theme, $path) {
  */
 function geo_citation_pseudo_field($entity) {
   $markup = '';
-  $article_type = $entity->field_article_type->getValue();
-  // If it's not a GEO Original article, there's nothing for us to do.
-  if (!isset($article_type[0]) || $article_type[0]['target_id'] != '303') {
+
+  // This returns a numerically-indexed array of arrays with little in them
+  // except the taxonomy term 'target_id' as a stringified number.
+  $article_types = $entity->field_article_type->getValue();
+  // This looks for the index matching 'GEO Original' (term ID 303), which will
+  // often be zero when it's the only selected article type, so we must be sure
+  // to test for a false identity and not accidentally reject zero.
+  if (array_search('303', array_column($article_types, 'target_id')) === FALSE) {
+    // If it's not a GEO Original article, we do not add a citation.
     return $markup;
   }