diff --git a/poi-excelant/src/main/java9/module-info.java b/poi-excelant/src/main/java9/module-info.java
index 743b172ad1..94c1f4c337 100644
--- a/poi-excelant/src/main/java9/module-info.java
+++ b/poi-excelant/src/main/java9/module-info.java
@@ -18,6 +18,7 @@
 module org.apache.poi.excelant {
 
     requires ant;
+    requires transitive org.apache.poi.poi;
     requires org.apache.poi.ooxml;
 
     exports org.apache.poi.ss.excelant;