diff --git a/UI/SpecialVisualizations.ts b/UI/SpecialVisualizations.ts
index 6cbe3fd1f9..ac1252d2da 100644
--- a/UI/SpecialVisualizations.ts
+++ b/UI/SpecialVisualizations.ts
@@ -170,7 +170,8 @@ export default class SpecialVisualizations {
                     if (subject === "") {
                         return Translations.t.reviews.name_required;
                     }
-                    const mangrove = MangroveReviews.Get(Number(tgs._lon), Number(tgs._lat),subject,
+                    const mangrove = MangroveReviews.Get(Number(tgs._lon), Number(tgs._lat),
+                        encodeURIComponent(subject),
                         State.state.mangroveIdentity,
                         State.state.osmConnection._dryRun
                     );