diff --git a/.gitignore b/.gitignore
index a2a3040..4cdf36b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,5 +1,6 @@
 HELP.md
 target/
+catalina.base_IS_UNDEFINED/
 !.mvn/wrapper/maven-wrapper.jar
 !**/src/main/**
 !**/src/test/**
@@ -12,6 +13,7 @@ target/
 .settings
 .springBeans
 .sts4-cache
+.mvn
 
 ### IntelliJ IDEA ###
 .idea