diff --git a/radio/processor/src/Buffer.hpp b/radio/processor/src/Buffer.hpp
index 4378f4e..b7e1130 100644
--- a/radio/processor/src/Buffer.hpp
+++ b/radio/processor/src/Buffer.hpp
@@ -47,7 +47,7 @@ class Buffer : public IBuffer
 		Result m_code;
 
 	};
-	Buffer(size_t capacity);
+	Buffer(size_t capacity=0);
 	~Buffer();
 	Buffer(const Buffer<T> &rhs) = delete;