diff --git a/poi-scratchpad/src/test/java9/module-info.java b/poi-scratchpad/src/test/java9/module-info.java
index 0d6ba80e5b7..928263f64af 100644
--- a/poi-scratchpad/src/test/java9/module-info.java
+++ b/poi-scratchpad/src/test/java9/module-info.java
@@ -19,6 +19,7 @@ Licensed to the Apache Software Foundation (ASF) under one or more
     requires transitive org.apache.poi.poi;
     requires java.desktop;
     requires commons.math3;
+    requires org.apache.commons.io;
     requires org.apache.logging.log4j;
 
     uses org.apache.poi.sl.usermodel.MetroShapeProvider;