diff --git a/poi-scratchpad/src/test/java9/module-info.java b/poi-scratchpad/src/test/java9/module-info.java
index 928263f64a..35dbc01a3e 100644
--- a/poi-scratchpad/src/test/java9/module-info.java
+++ b/poi-scratchpad/src/test/java9/module-info.java
@@ -20,6 +20,7 @@ module org.apache.poi.scratchpad {
     requires java.desktop;
     requires commons.math3;
     requires org.apache.commons.io;
+    requires org.apache.commons.codec;
     requires org.apache.logging.log4j;
 
     uses org.apache.poi.sl.usermodel.MetroShapeProvider;