diff --git a/examples/CardInfo/CardInfo.ino b/examples/CardInfo/CardInfo.ino
index 97913ef..1a81867 100644
--- a/examples/CardInfo/CardInfo.ino
+++ b/examples/CardInfo/CardInfo.ino
@@ -110,6 +110,7 @@ void setup() {
 
   // list all files in the card with date and size
   root.ls(LS_R | LS_DATE | LS_SIZE);
+  root.close();
 }
 
 void loop(void) {