diff --git a/core/server/models/post.js b/core/server/models/post.js
index 2a8922e07d..fb19e7ed75 100644
--- a/core/server/models/post.js
+++ b/core/server/models/post.js
@@ -509,8 +509,12 @@ Post = ghostBookshelf.Model.extend({
         }
         // If the current column settings allow it...
         if (!options.columns || (options.columns && options.columns.indexOf('primary_tag') > -1)) {
-            // ... attach a computed property of primary_tag which is the first tag or null
-            attrs.primary_tag = attrs.tags && attrs.tags.length > 0 ? attrs.tags[0] : null;
+            // ... attach a computed property of primary_tag which is the first tag if it is public, else null
+            if (attrs.tags && attrs.tags.length > 0 && attrs.tags[0].visibility === 'public') {
+                attrs.primary_tag = attrs.tags[0];
+            } else {
+                attrs.primary_tag = null;
+            }
         }
 
         if (!options.columns || (options.columns && options.columns.indexOf('url') > -1)) {