diff --git a/src/main/java/com/google/devtools/build/lib/bazel/bzlmod/GsonTypeAdapterUtil.java b/src/main/java/com/google/devtools/build/lib/bazel/bzlmod/GsonTypeAdapterUtil.java
index 4832c117d8d0d9..09fcafc2b16d89 100644
--- a/src/main/java/com/google/devtools/build/lib/bazel/bzlmod/GsonTypeAdapterUtil.java
+++ b/src/main/java/com/google/devtools/build/lib/bazel/bzlmod/GsonTypeAdapterUtil.java
@@ -109,6 +109,7 @@ public Registry read(JsonReader jsonReader) throws IOException {
 
   private static final GsonBuilder adapterGson =
       new GsonBuilder()
+          .setPrettyPrinting()
           .registerTypeAdapterFactory(GenerateTypeAdapter.FACTORY)
           .registerTypeAdapterFactory(DICT)
           .registerTypeAdapterFactory(IMMUTABLE_MAP)