diff --git a/kappa123/client/static/main.js b/kappa123/client/static/main.js
index 7ce097a..99343b5 100644
--- a/kappa123/client/static/main.js
+++ b/kappa123/client/static/main.js
@@ -55,7 +55,7 @@ function setRowValue(id, selected) {
 }
 
 function setSelectedValue(val) {
-    hideUnselected = (val=="true") || val;
+    hideUnselected = (val == "true") || (val == true);
     persistCache();
     var table = document.getElementById('the_table');
     hideUnselected ? table.className = "hide-unselected" : table.className = "";