diff --git a/script.js b/script.js
index 2529994..2e09d17 100644
--- a/script.js
+++ b/script.js
@@ -41,7 +41,7 @@ async function run() {
     }
 
     function clear_game() {
-        gameDataInput.innerHTML = "";
+        gameDataInput.value = "";
     }
 
     let new_game_button = document.getElementById("new");
@@ -96,9 +96,10 @@ async function run() {
 
     function addTiles() {
         let image    = document.getElementById("preview").getAttribute("src");
-        let gameData = document.getElementById("game-data").innerHTML;
+        let gameData = document.getElementById("game-data").value;
         let prefix   = document.getElementById("prefix").value;
-        document.getElementById("output").innerHTML = add_tiles(gameData, image, prefix);
+
+        output.value = add_tiles(gameData, image, prefix);
     }
 
     const importButton = document.getElementById("import");
@@ -116,7 +117,7 @@ async function run() {
     addImageButton.addEventListener("touchend", addImage);
 
     function reset() {
-        gameDataInput.innerHTML = '';
+        clear_game();
         preview.removeAttribute("src");
     }