diff --git a/modules/swagger-codegen/src/main/java/io/swagger/codegen/DefaultCodegen.java b/modules/swagger-codegen/src/main/java/io/swagger/codegen/DefaultCodegen.java
index 429ede03638..b1b79498b73 100644
--- a/modules/swagger-codegen/src/main/java/io/swagger/codegen/DefaultCodegen.java
+++ b/modules/swagger-codegen/src/main/java/io/swagger/codegen/DefaultCodegen.java
@@ -2095,14 +2095,6 @@ public class DefaultCodegen {
             word = m.replaceAll(rep);
         }
 
-        // Replace two underscores with $ to support inner classes.
-        p = Pattern.compile("(__)(.)");
-        m = p.matcher(word);
-        while (m.find()) {
-            word = m.replaceFirst("\\$" + m.group(2).toUpperCase());
-            m = p.matcher(word);
-        }
-
         // Remove all underscores
         p = Pattern.compile("(_)(.)");
         m = p.matcher(word);
diff --git a/modules/swagger-codegen/src/main/java/io/swagger/codegen/languages/PhpClientCodegen.java b/modules/swagger-codegen/src/main/java/io/swagger/codegen/languages/PhpClientCodegen.java
index 80e88c0fb4b..1046add66ec 100644
--- a/modules/swagger-codegen/src/main/java/io/swagger/codegen/languages/PhpClientCodegen.java
+++ b/modules/swagger-codegen/src/main/java/io/swagger/codegen/languages/PhpClientCodegen.java
@@ -372,10 +372,6 @@ public class PhpClientCodegen extends DefaultCodegen implements CodegenConfig {
         return camelize(name);
     }
 
-    public static String camelize(String word) {
-        return DefaultCodegen.camelize(word).replaceAll("\\$", "");
-    }
-
     @Override
     public String toModelFilename(String name) {
         // should be the same as the model name