diff --git a/compiler/compiler.pro b/compiler/compiler.pro
index 710ecbf24f0..fe8f74a7bb4 100644
--- a/compiler/compiler.pro
+++ b/compiler/compiler.pro
@@ -135,6 +135,8 @@ messages/**)
 # This is needed so that the platform code which parses XML wouldn't fail, see KT-16968
 # This API is used from org.jdom.input.SAXBuilder via reflection.
 -keep class org.jdom.input.JAXPParserFactory { public ** createParser(...); }
+# Without this class PluginManagerCore.loadDescriptorFromJar fails
+-keep class org.jdom.output.XMLOutputter { *; }
 
 # for kdoc & dokka
 -keep class com.intellij.openapi.util.TextRange { *; }