diff --git a/app/node/param.cpp b/app/node/param.cpp
index eb6c196e2..03688b23a 100644
--- a/app/node/param.cpp
+++ b/app/node/param.cpp
@@ -111,4 +111,6 @@ QString NodeParam::GetDefaultDataTypeName(const DataType& type)
   case kBlock: return tr("Block");
   case kAny: return tr("Any");
   }
+
+  return QString();
 }
diff --git a/app/node/param.h b/app/node/param.h
index 47659baa6..0a81d6400 100644
--- a/app/node/param.h
+++ b/app/node/param.h
@@ -33,7 +33,7 @@ public:
   enum Type {
     kInput,
     kOutput,
-    kPassthrough
+    kBidirectional
   };
 
   enum DataType {