diff --git a/src/java_tools/buildjar/java/com/google/devtools/build/java/turbine/javac/JavacTurbine.java b/src/java_tools/buildjar/java/com/google/devtools/build/java/turbine/javac/JavacTurbine.java
index 85f4eaf9eb76ef..1152e3c903f876 100644
--- a/src/java_tools/buildjar/java/com/google/devtools/build/java/turbine/javac/JavacTurbine.java
+++ b/src/java_tools/buildjar/java/com/google/devtools/build/java/turbine/javac/JavacTurbine.java
@@ -154,6 +154,9 @@ Result compile() throws IOException {
       argbuilder.add("-processor");
       argbuilder.add(Joiner.on(',').join(turbineOptions.processors()));
       processorpath = asPaths(turbineOptions.processorPath());
+
+      // see b/31371210
+      argbuilder.add("-Aexperimental_turbine_hjar");
     } else {
       processorpath = ImmutableList.of();
     }