diff --git a/hilt-compiler/main/java/dagger/hilt/processor/internal/root/RootProcessingStep.java b/hilt-compiler/main/java/dagger/hilt/processor/internal/root/RootProcessingStep.java
index 6b5ce594fbd..1548bf56e95 100644
--- a/hilt-compiler/main/java/dagger/hilt/processor/internal/root/RootProcessingStep.java
+++ b/hilt-compiler/main/java/dagger/hilt/processor/internal/root/RootProcessingStep.java
@@ -24,15 +24,19 @@
 import static dagger.internal.codegen.extension.DaggerStreams.toImmutableSet;
 import static java.util.Arrays.stream;
 
+import androidx.room3.compiler.processing.XAnnotation;
+import androidx.room3.compiler.processing.XAnnotationValue;
 import androidx.room3.compiler.processing.XElement;
 import androidx.room3.compiler.processing.XFiler.Mode;
 import androidx.room3.compiler.processing.XProcessingEnv;
 import androidx.room3.compiler.processing.XRoundEnv;
 import androidx.room3.compiler.processing.XTypeElement;
+import com.google.common.base.Preconditions;
 import com.google.common.collect.ImmutableSet;
 import com.squareup.javapoet.ClassName;
 import dagger.hilt.processor.internal.BadInputException;
 import dagger.hilt.processor.internal.BaseProcessingStep;
+import dagger.hilt.processor.internal.ClassNames;
 import dagger.hilt.processor.internal.aggregateddeps.AggregatedDepsMetadata;
 import dagger.hilt.processor.internal.aliasof.AliasOfPropagatedDataMetadata;
 import dagger.hilt.processor.internal.definecomponent.DefineComponentClassesMetadata;
@@ -51,6 +55,7 @@
 import dagger.hilt.processor.internal.root.ir.ProcessedRootSentinelIr;
 import dagger.hilt.processor.internal.uninstallmodules.AggregatedUninstallModulesMetadata;
 import dagger.internal.codegen.xprocessing.XElements;
+import java.util.Optional;
 import java.util.Set;
 
 /** Processor that outputs dagger components based on transitive build deps. */
@@ -138,6 +143,20 @@ protected void postProcess(XProcessingEnv env, XRoundEnv roundEnv) throws Except
     }
   }
 
+  private static Optional<String> getMultiprocessPackageName(XTypeElement rootElement) {
+    XAnnotation multiprocessAnnotation = rootElement.getAnnotation(ClassNames.MULTIPROCESS);
+    Preconditions.checkState(
+        multiprocessAnnotation != null,
+        "Root element %s does not have a @Multiprocess annotation.",
+        rootElement.getQualifiedName());
+    XAnnotationValue packageName = multiprocessAnnotation.get("packageName");
+    String packageNameString = packageName.asString();
+    if (packageNameString.isEmpty()) {
+      return Optional.empty();
+    }
+    return Optional.of(packageNameString);
+  }
+
   private ImmutableSet<AggregatedRootIr> rootsToProcess() {
     ImmutableSet<ProcessedRootSentinelIr> processedRoots =
         ProcessedRootSentinelMetadata.from(processingEnv()).stream()