diff --git a/src/common/CONSTANTS.js b/src/common/CONSTANTS.js
index 20bb87fc0..c24e5df54 100644
--- a/src/common/CONSTANTS.js
+++ b/src/common/CONSTANTS.js
@@ -1,7 +1,9 @@
 const SUBTITLES_SIZES = [75, 100, 125, 150, 175, 200, 250];
 const SUBTITLES_FONTS = ['Roboto', 'Arial', 'Halvetica', 'Times New Roman', 'Verdana', 'Courier', 'Lucida Console', 'sans-serif', 'serif', 'monospace'];
+const CATALOG_PREVIEW_SIZE = 10;
 
 module.exports = {
     SUBTITLES_SIZES,
-    SUBTITLES_FONTS
+    SUBTITLES_FONTS,
+    CATALOG_PREVIEW_SIZE
 };