1 files changed, 1 insertions, 1 deletions
diff --git a/chapter21/src/test/java/com/seaofnodes/simple/Simple.java b/chapter21/src/test/java/com/seaofnodes/simple/Simple.java
index b77f2433..509ec100 100644
--- a/chapter21/src/test/java/com/seaofnodes/simple/Simple.java
+++ b/chapter21/src/test/java/com/seaofnodes/simple/Simple.java
@@ -152,7 +152,7 @@ Options:
         System.out.println(String.format("TOTAL COMPILATION TIME:     %.3f sec", total));
     }
 
-    static String getInput() {
+    static String getInput() throws IOException {
         try (BufferedReader reader = new BufferedReader(new InputStreamReader(System.in))) {
             return reader.lines().collect(Collectors.joining("\n"));
         }