diff --git a/.gitignore b/.gitignore
deleted file mode 100644
index dad7b76..0000000
--- a/.gitignore
+++ /dev/null
@@ -1 +0,0 @@
-thirdparty/standalone/HTMLPurifier/DefinitionCache/Serializer/*
diff --git a/thirdparty/standalone/HTMLPurifier/DefinitionCache/Serializer/.gitignore b/thirdparty/standalone/HTMLPurifier/DefinitionCache/Serializer/.gitignore
new file mode 100644
index 0000000..5e7d273
--- /dev/null
+++ b/thirdparty/standalone/HTMLPurifier/DefinitionCache/Serializer/.gitignore
@@ -0,0 +1,4 @@
+# Ignore everything in this directory
+*
+# Except this file
+!.gitignore