diff --git a/examples/src/main/java/com/google/bitcoin/examples/BlockImporter.java b/examples/src/main/java/com/google/bitcoin/examples/BlockImporter.java
index f7b8c220..f3da1b09 100644
--- a/examples/src/main/java/com/google/bitcoin/examples/BlockImporter.java
+++ b/examples/src/main/java/com/google/bitcoin/examples/BlockImporter.java
@@ -71,6 +71,7 @@ public class BlockImporter {
                 System.out.println(i);
             i++;
         }
+        stream.close();
         System.out.println("Imported " + chain.getChainHead().getHeight() + " blocks.");
     }
 }