diff --git a/commons-gson/src/main/java/io/gitlab/jfronny/commons/serialize/gson/api/GsonHolder.java b/commons-gson/src/main/java/io/gitlab/jfronny/commons/serialize/gson/api/GsonHolder.java
index 850aeb3..dcca896 100644
--- a/commons-gson/src/main/java/io/gitlab/jfronny/commons/serialize/gson/api/GsonHolder.java
+++ b/commons-gson/src/main/java/io/gitlab/jfronny/commons/serialize/gson/api/GsonHolder.java
@@ -21,7 +21,7 @@ public class GsonHolder {
     }
 
     public static void modifyBuilder(Consumer<GsonBuilder> func) {
-        GsonHolders.API.modifyBuilder(func);
+        GsonHolders.modifyBuilder(func);
     }
 
     public static void register() {
diff --git a/commons-gson/src/main/java/io/gitlab/jfronny/commons/serialize/gson/api/v1/GsonHolders.java b/commons-gson/src/main/java/io/gitlab/jfronny/commons/serialize/gson/api/v1/GsonHolders.java
index c51dfbb..1467618 100644
--- a/commons-gson/src/main/java/io/gitlab/jfronny/commons/serialize/gson/api/v1/GsonHolders.java
+++ b/commons-gson/src/main/java/io/gitlab/jfronny/commons/serialize/gson/api/v1/GsonHolders.java
@@ -27,16 +27,17 @@ public class GsonHolders {
     );
 
     public static void registerTypeAdapter(Type type, Object typeAdapter) {
-        synchronized (KNOWN_INSTANCES) {
-            KNOWN_MODIFICATIONS.add(b -> b.registerTypeAdapter(type, typeAdapter));
-            for (GsonHolder holder : KNOWN_INSTANCES) holder.registerTypeAdapter(type, typeAdapter);
-        }
+        modifyBuilder(b -> b.registerTypeAdapter(type, typeAdapter));
     }
 
     public static void registerTypeAdapterFactory(TypeAdapterFactory factory) {
+        modifyBuilder(b -> b.registerTypeAdapterFactory(factory));
+    }
+
+    public static void modifyBuilder(Consumer<GsonBuilder> func) {
         synchronized (KNOWN_INSTANCES) {
-            KNOWN_MODIFICATIONS.add(b -> b.registerTypeAdapterFactory(factory));
-            for (GsonHolder holder : KNOWN_INSTANCES) holder.registerTypeAdapterFactory(factory);
+            KNOWN_MODIFICATIONS.add(func);
+            for (GsonHolder holder : KNOWN_INSTANCES) holder.modifyBuilder(func);
         }
     }