diff --git a/kitty/ringbuf.c b/3rdparty/ringbuf/ringbuf.c
similarity index 100%
rename from kitty/ringbuf.c
rename to 3rdparty/ringbuf/ringbuf.c
diff --git a/kitty/ringbuf.h b/3rdparty/ringbuf/ringbuf.h
similarity index 100%
rename from kitty/ringbuf.h
rename to 3rdparty/ringbuf/ringbuf.h
diff --git a/kitty/history.c b/kitty/history.c
index f42736a32..6a79cb713 100644
--- a/kitty/history.c
+++ b/kitty/history.c
@@ -9,7 +9,7 @@
 #include "lineops.h"
 #include "charsets.h"
 #include <structmember.h>
-#include "ringbuf.h"
+#include "../3rdparty/ringbuf/ringbuf.h"
 
 extern PyTypeObject Line_Type;
 #define SEGMENT_SIZE 2048
diff --git a/setup.py b/setup.py
index 43154ee7f..d314410d2 100755
--- a/setup.py
+++ b/setup.py
@@ -803,6 +803,8 @@ def find_c_files() -> Tuple[List[str], List[str]]:
             headers.append(os.path.join('kitty', x))
     ans.append('kitty/vt-parser-dump.c')
 
+    # ringbuf
+    ans.append('3rdparty/ringbuf/ringbuf.c')
     # base64
     ans.extend(glob.glob('3rdparty/base64/lib/arch/*/codec.c'))
     ans.append('3rdparty/base64/lib/tables/tables.c')