diff --git a/editor/src/editor.js b/editor/src/editor.js
index c79081b..cb6eb9e 100644
--- a/editor/src/editor.js
+++ b/editor/src/editor.js
@@ -357,10 +357,13 @@ function Editor(holder, input) {
         } else if (converted.startsWith("=", 0)) {
             converted = transformMathExpression(converted, scope);
         } else {
-            let re = /^([A-Z0-9 ]+)::\s*(.+)$/i;
+            let re = /^([A-Z0-9 ]+)::\s*(.*)$/i;
             let res = text.match(re)
             if (res) {
-                converted = '<span class="metadata-key">[[' + res[1] + ']]</span>: ' + res[2]
+                converted = '<span class="metadata-key">[[' + res[1] + ']]</span>'
+                if (res[2]) {
+                    converted += ': ' + res[2]
+                }
             } else if (text.match(/#\[\[TODO]]/)) {
                 converted = converted.replace('#[[TODO]]', '<input class="checkbox" type="checkbox" />')
                 todo = true;