diff --git a/src/js/popup.js b/src/js/popup.js
index c574b0e..82afa7c 100644
--- a/src/js/popup.js
+++ b/src/js/popup.js
@@ -618,6 +618,8 @@ function renderMatrixMetaCellType(cell, count) {
         .prop('count', count);
     if ( count ) {
         cell.text(count);
+    } else {
+        cell.text('\u00A0');
     }
 }