diff --git a/src/common/memory.cpp b/src/common/memory.cpp
index a034686f3..9368e9171 100644
--- a/src/common/memory.cpp
+++ b/src/common/memory.cpp
@@ -34,6 +34,17 @@ memory_c::resize(size_t new_size) throw() {
   }
 }
 
+void
+memory_c::add(unsigned char *new_buffer,
+              size_t new_size) {
+  if ((0 == new_size) || (NULL == new_buffer))
+    return;
+
+  size_t previous_size = get_size();
+  resize(previous_size + new_size);
+  memcpy(get_buffer() + previous_size, new_buffer, new_size);
+}
+
 memory_cptr
 lace_memory_xiph(const std::vector<memory_cptr> &blocks) {
   size_t i, size = 1;
diff --git a/src/common/memory.h b/src/common/memory.h
index 2d08415cb..5f40d82c9 100644
--- a/src/common/memory.h
+++ b/src/common/memory.h
@@ -138,6 +138,10 @@ public:
   }
 
   void resize(size_t new_size) throw();
+  void add(unsigned char *new_buffer, size_t new_size);
+  void add(memory_cptr &new_buffer) {
+    add(new_buffer->get_buffer(), new_buffer->get_size());
+  }
 
   operator const unsigned char *() const {
     return its_counter ? its_counter->ptr : NULL;