diff --git a/buildSrc/src/steamwar.java.gradle b/buildSrc/src/steamwar.java.gradle
index 338a496c..ee5b7a01 100644
--- a/buildSrc/src/steamwar.java.gradle
+++ b/buildSrc/src/steamwar.java.gradle
@@ -28,6 +28,7 @@ java {
 
 tasks.compileJava {
     options.encoding "UTF-8"
+    options.compilerArgs << '--add-exports=java.base/jdk.internal.misc=ALL-UNNAMED'
 }
 
 sourceSets {