diff --git a/build.gradle b/build.gradle
index c61bb81fc5..ab49e67bcb 100644
--- a/build.gradle
+++ b/build.gradle
@@ -193,6 +193,9 @@ subprojects {
             options.compilerArgs.addAll(['--add-exports', 'java.base/java.net=ALL-UNNAMED'])
             options.compilerArgs.addAll(['--add-exports', 'java.base/sun.nio.ch=ALL-UNNAMED'])
             options.compilerArgs.addAll(['--add-exports', 'jdk.unsupported/sun.misc=ALL-UNNAMED'])
+            // -- Workaround for https://github.com/gradle/gradle/issues/15538
+            options.forkOptions.jvmArgs.addAll( ['--add-opens', 'jdk.compiler/com.sun.tools.javac.code=ALL-UNNAMED'] )
+            // --
         }
         options.encoding = 'UTF-8'
         options.deprecation = true