diff --git a/.gitignore b/.gitignore
index ed8a7870af..0a69847dcb 100644
--- a/.gitignore
+++ b/.gitignore
@@ -37,3 +37,6 @@ TEST-org.apache.poi*.xml
 /*/build/
 dist
 lib/
+
+# Compiled module-info class-files
+/poi*/src/*/java9/*.class