diff --git a/dialogue-annotations-processor/src/main/java/com/palantir/dialogue/annotations/processor/generate/ServiceImplementationGenerator.java b/dialogue-annotations-processor/src/main/java/com/palantir/dialogue/annotations/processor/generate/ServiceImplementationGenerator.java
index 8ee20718a..202f5348f 100644
--- a/dialogue-annotations-processor/src/main/java/com/palantir/dialogue/annotations/processor/generate/ServiceImplementationGenerator.java
+++ b/dialogue-annotations-processor/src/main/java/com/palantir/dialogue/annotations/processor/generate/ServiceImplementationGenerator.java
@@ -54,7 +54,7 @@ public final class ServiceImplementationGenerator {
 
     private static final String REQUEST = "_request";
     private static final String PARAMETER_SERIALIZER = "_parameterSerializer";
-    public static final String MAP = "map";
+    private static final String MAP = "map";
 
     private final ServiceDefinition serviceDefinition;