diff --git a/gatchat/ringbuffer.c b/gatchat/ringbuffer.c
index 23bcaed7..f82a9f9d 100644
--- a/gatchat/ringbuffer.c
+++ b/gatchat/ringbuffer.c
@@ -31,6 +31,13 @@
 
 #define MAX_SIZE 262144
 
+struct ring_buffer {
+	unsigned char *buffer;
+	unsigned int size;
+	unsigned int in;
+	unsigned int out;
+};
+
 struct ring_buffer *ring_buffer_new(unsigned int size)
 {
 	unsigned int real_size = 1;
diff --git a/gatchat/ringbuffer.h b/gatchat/ringbuffer.h
index 486c182d..f1bf3b8d 100644
--- a/gatchat/ringbuffer.h
+++ b/gatchat/ringbuffer.h
@@ -19,12 +19,7 @@
  *
  */
 
-struct ring_buffer {
-	unsigned char *buffer;
-	unsigned int size;
-	unsigned int in;
-	unsigned int out;
-};
+struct ring_buffer;
 
 /*!
  * Creates a new ring buffer with capacity size