diff --git a/include/common.h b/include/common.h
index b96cb0f8..fe2afd89 100644
--- a/include/common.h
+++ b/include/common.h
@@ -65,4 +65,7 @@
 /* Right out of the RFC */
 #define IRCD_BUFSIZE 512
 
+/* readbuf size */
+#define READBUF_SIZE 16384
+
 #endif /* INCLUDED_common_h */
diff --git a/src/packet.c b/src/packet.c
index ea6a3b8a..705598a4 100644
--- a/src/packet.c
+++ b/src/packet.c
@@ -34,6 +34,7 @@
 #include "match.h"
 #include "hook.h"
 #include "send.h"
+#include "common.h"
 
 static char readBuf[READBUF_SIZE];
 static void client_dopacket(struct Client *client_p, char *buffer, size_t length);