diff --git a/src/components/cardSelector/ImportButton.tsx b/src/components/cardSelector/ImportButton.tsx
index 8df6739..90f5952 100644
--- a/src/components/cardSelector/ImportButton.tsx
+++ b/src/components/cardSelector/ImportButton.tsx
@@ -10,6 +10,8 @@ export function ImportButton() {
   function _handleImport() {
     const input = document.createElement('input')
     input.type = 'file'
+    input.accept = ".json"
+    input.multiple = false
     input.onchange = (e: any) => {
       const file = e.target.files[0]
       const reader = new FileReader()