1 files changed, 11 insertions, 2 deletions
diff --git a/src/server/internals/BlockDelay.hpp b/src/server/internals/BlockDelay.hpp
index ed8073c8..2b523e37 100644
--- a/src/server/internals/BlockDelay.hpp
+++ b/src/server/internals/BlockDelay.hpp
@@ -21,13 +21,22 @@
 #include "InternalBlock.hpp"
 #include "types.hpp"
 
+namespace Raul {
+class Symbol;
+} // namespace Raul
+
 namespace ingen {
+
+class URIs;
+
 namespace server {
 
+class BufferFactory;
+class GraphImpl;
 class InputPort;
-class OutputPort;
 class InternalPlugin;
-class BufferFactory;
+class OutputPort;
+class RunContext;
 
 namespace internals {