diff --git a/web/pgadmin/browser/static/js/browser.js b/web/pgadmin/browser/static/js/browser.js
index 13af4ea..46b6033 100644
--- a/web/pgadmin/browser/static/js/browser.js
+++ b/web/pgadmin/browser/static/js/browser.js
@@ -1945,7 +1945,7 @@ define('pgadmin.browser', [
       'Shift-Tab': 'indentLess',
     },
     editor_options: {
-      tabSize: pgBrowser.utils.tabSize,
+      tabSize: parseInt(pgBrowser.utils.tabSize),
       wrapCode: pgBrowser.utils.wrapCode,
       insert_pair_brackets: pgBrowser.utils.insertPairBrackets,
       brace_matching: pgBrowser.utils.braceMatching,