diff --git a/com.btc.serviceidl/src/com/btc/serviceidl/generator/common/GeneratorUtil.xtend b/com.btc.serviceidl/src/com/btc/serviceidl/generator/common/GeneratorUtil.xtend
index d14e7856..05642696 100644
--- a/com.btc.serviceidl/src/com/btc/serviceidl/generator/common/GeneratorUtil.xtend
+++ b/com.btc.serviceidl/src/com/btc/serviceidl/generator/common/GeneratorUtil.xtend
@@ -20,6 +20,7 @@ import com.btc.serviceidl.idl.AbstractTypeReference
 import com.btc.serviceidl.idl.AliasDeclaration
 import com.btc.serviceidl.idl.EnumDeclaration
 import com.btc.serviceidl.idl.ExceptionDeclaration
+import com.btc.serviceidl.idl.FunctionDeclaration
 import com.btc.serviceidl.idl.IDLSpecification
 import com.btc.serviceidl.idl.InterfaceDeclaration
 import com.btc.serviceidl.idl.ModuleDeclaration
@@ -255,4 +256,11 @@ class GeneratorUtil
         // (in the generator settings?)
         idl.eResource.URI.lastSegment.replace(".idl", "") + if (artifactNature == ArtifactNature.DOTNET) ".NET" else ""
     }
+
+    static def String getProtobufFunctionName(FunctionDeclaration object, ProtobufType protobufType)
+    {
+        val scopeDeterminant = object.scopeDeterminant
+        #[Names.plain(scopeDeterminant), protobufType.getName, Names.plain(object) + protobufType.getName].join("_")
+    }
+    
 }
diff --git a/com.btc.serviceidl/src/com/btc/serviceidl/generator/cpp/ProtobufUtil.xtend b/com.btc.serviceidl/src/com/btc/serviceidl/generator/cpp/ProtobufUtil.xtend
index d0aa2351..cdf6e2bb 100644
--- a/com.btc.serviceidl/src/com/btc/serviceidl/generator/cpp/ProtobufUtil.xtend
+++ b/com.btc.serviceidl/src/com/btc/serviceidl/generator/cpp/ProtobufUtil.xtend
@@ -50,13 +50,11 @@ class ProtobufUtil
 
         val paramBundle = ParameterBundle.createBuilder(scopeDeterminant.moduleStack).with(ProjectType.PROTOBUF).build
 
-        // TODO this is cloned by java.ProtobufUtil(.getLocalName?) 
         val result = GeneratorUtil.getTransformedModuleName(paramBundle, ArtifactNature.CPP, TransformType.NAMESPACE) +
             Constants.SEPARATOR_NAMESPACE + if (object instanceof InterfaceDeclaration)
                 Names.plain(object) + protobufType.getName
             else if (object instanceof FunctionDeclaration)
-                Names.plain(scopeDeterminant) + "_" + protobufType.getName + "_" + Names.plain(object) +
-                    protobufType.getName
+                getProtobufFunctionName(object, protobufType)
             else
                 Names.plain(object)
 
diff --git a/com.btc.serviceidl/src/com/btc/serviceidl/generator/java/ProtobufUtil.xtend b/com.btc.serviceidl/src/com/btc/serviceidl/generator/java/ProtobufUtil.xtend
index fb69fcbd..a139c10b 100644
--- a/com.btc.serviceidl/src/com/btc/serviceidl/generator/java/ProtobufUtil.xtend
+++ b/com.btc.serviceidl/src/com/btc/serviceidl/generator/java/ProtobufUtil.xtend
@@ -70,8 +70,7 @@ class ProtobufUtil
             val scopeDeterminant = object.scopeDeterminant
 
             if (object instanceof FunctionDeclaration && Util.ensurePresentOrThrow(optProtobufType))
-                Names.plain(scopeDeterminant) + "_" + optProtobufType.get.getName + "_" + Names.plain(object) +
-                    optProtobufType.get.getName
+                getProtobufFunctionName(object as FunctionDeclaration, optProtobufType.get)
             else
                 (if (scopeDeterminant instanceof ModuleDeclaration)
                     Constants.FILE_NAME_TYPES