diff --git a/src/main/swap/Main.ts b/src/main/swap/Main.ts
index 6f7ae5c..3324108 100644
--- a/src/main/swap/Main.ts
+++ b/src/main/swap/Main.ts
@@ -71,9 +71,26 @@ function address_to_url(address: BlockchainAddress): string {
 }
 
 function ui_show_route() {
+    if (CURRENT_ROUTE.from == null || CURRENT_ROUTE.to == null) {
+        return;
+    }
+
+    const infoFrom = TOKENS[CURRENT_ROUTE.from.asString()];
+    const infoTo = TOKENS[CURRENT_ROUTE.to.asString()];
+
+    const symbolFrom = infoFrom.latest_state == null ? "???" : infoFrom.latest_state.symbol;
+    const symbolTo = infoTo.latest_state == null ? "???" : infoTo.latest_state.symbol;
+
+    for (const a of document.querySelectorAll("[data-input-token]")) {
+        (<HTMLElement>a).innerText = symbolFrom;
+    }
+    for (const a of document.querySelectorAll("[data-output-token]")) {
+        (<HTMLElement>a).innerText = symbolTo;
+    }
 }
 
 function reroute() {
+    console.log("Rerouting", CURRENT_ROUTE);
 
     // Do not route if from or to are not assigned yet.
     if (CURRENT_ROUTE.from == null || CURRENT_ROUTE.to == null) {
@@ -82,6 +99,8 @@ function reroute() {
 
     // Perform routing.
     // TODO
+
+    ui_show_route();
 }
 
 function routeFrom(address: BlockchainAddress) {
@@ -114,7 +133,7 @@ function ui_add_token(tokenState: TokenStateV1 | TokenStateV2, address: Blockcha
                         value="To" />
                     </form>
                     `;
-    spanFrom.addEventListener("click", () => routeTo(address));
+    spanTo.addEventListener("click", () => routeTo(address));
     const spanSymbol= document.createElement("a");
     spanSymbol.innerText = tokenState.symbol;
     spanSymbol.title = tokenState.name;
diff --git a/tsconfig.json b/tsconfig.json
index bfc631e..3674998 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -12,6 +12,6 @@
     "strict": true,
     "sourceMap": true,
     "jsx": "react",
-    "lib": ["dom", "es2015", "es2016", "es2017", "esnext"]
+    "lib": ["dom", "es2015", "es2016", "es2017", "esnext", "dom.iterable"]
   }
 }