diff --git a/src/components/load-button/load-button.jsx b/src/components/load-button/load-button.jsx
index 65c40012056b40bc53588a1b2507b9add5d8da76..d437a9c0265a71fd6d5303e3ca62ef3a647c3eb0 100644
--- a/src/components/load-button/load-button.jsx
+++ b/src/components/load-button/load-button.jsx
@@ -26,7 +26,7 @@ const LoadButtonComponent = ({
             </ButtonComponent>
             <input
                 disabled
-                accept=".sb,.sb2,.sb3,.zip"
+                accept=".sb2,.sb3"
                 className={styles.fileInput}
                 ref={inputRef}
                 type="file"
diff --git a/src/containers/save-button.jsx b/src/containers/save-button.jsx
index a56de86a13ca81b4f90f28d1787481a37477969f..fc8bcf40a635b0a3caafae8f6ec27f9ede8704c2 100644
--- a/src/containers/save-button.jsx
+++ b/src/containers/save-button.jsx
@@ -28,7 +28,7 @@ class SaveButton extends React.Component {
             const date = new Date();
             const timestamp = `${date.toLocaleDateString()}-${date.toLocaleTimeString()}`;
             // TODO change extension to sb3
-            saveLink.download = `project-${timestamp}.zip`;
+            saveLink.download = `untitled-project-${timestamp}.sb3`;
             saveLink.click();
             window.URL.revokeObjectURL(url);
             document.body.removeChild(saveLink);