diff --git a/src/inspector_socket.cc b/src/inspector_socket.cc
index 7be9a01e0c4315..63b7cb92a6e3d6 100644
--- a/src/inspector_socket.cc
+++ b/src/inspector_socket.cc
@@ -14,7 +14,6 @@
 #include <string.h>
 
 #define ACCEPT_KEY_LENGTH base64_encoded_size(20)
-#define BUFFER_GROWTH_CHUNK_SIZE 1024
 
 #define DUMP_READS 0
 #define DUMP_WRITES 0