diff --git a/src/Makefile b/src/Makefile
index 3f38589db5..05821644f6 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -1,5 +1,5 @@
 ##############################################################################
-# LuaJIT Makefile. Requires GNU Make.
+# RaptorJIT Makefile. Requires GNU Make.
 #
 # Please read doc/install.html before changing any variables!
 #
diff --git a/src/host/buildvm.c b/src/host/buildvm.c
index de23fabdce..3e2d19fdaf 100644
--- a/src/host/buildvm.c
+++ b/src/host/buildvm.c
@@ -372,7 +372,6 @@ static void usage(void)
 {
   int i;
   fprintf(stderr, LUAJIT_VERSION " VM builder.\n");
-  fprintf(stderr, LUAJIT_COPYRIGHT ", " LUAJIT_URL "\n");
   fprintf(stderr, "Target architecture: " LJ_ARCH_NAME "\n\n");
   fprintf(stderr, "Usage: buildvm -m mode [-o outfile] [infiles...]\n\n");
   fprintf(stderr, "Available modes:\n");
diff --git a/src/jit/bc.lua b/src/jit/bc.lua
index 193cf01f93..3e934bd3a3 100644
--- a/src/jit/bc.lua
+++ b/src/jit/bc.lua
@@ -41,7 +41,7 @@
 
 -- Cache some library functions and objects.
 local jit = require("jit")
-assert(jit.version_num == 20100, "LuaJIT core/library version mismatch")
+assert(jit.version_num == 10000, "LuaJIT core/library version mismatch")
 local jutil = require("jit.util")
 local vmdef = require("jit.vmdef")
 local bit = require("bit")
diff --git a/src/jit/bcsave.lua b/src/jit/bcsave.lua
index 52a90c79cd..09429d6c46 100644
--- a/src/jit/bcsave.lua
+++ b/src/jit/bcsave.lua
@@ -11,7 +11,7 @@
 ------------------------------------------------------------------------------
 
 local jit = require("jit")
-assert(jit.version_num == 20100, "LuaJIT core/library version mismatch")
+assert(jit.version_num == 10000, "LuaJIT core/library version mismatch")
 local bit = require("bit")
 
 -- Symbol name prefix for LuaJIT bytecode.
diff --git a/src/luajit.c b/src/luajit.c
index c6d5d53d16..dff189fa8e 100644
--- a/src/luajit.c
+++ b/src/luajit.c
@@ -55,8 +55,8 @@ static void print_usage(void)
   "  -e chunk  Execute string " LUA_QL("chunk") ".\n"
   "  -l name   Require library " LUA_QL("name") ".\n"
   "  -b ...    Save or list bytecode.\n"
-  "  -j cmd    Perform LuaJIT control command.\n"
-  "  -O[opt]   Control LuaJIT optimizations.\n"
+  "  -j cmd    Perform RaptorJIT control command.\n"
+  "  -O[opt]   Control RaptorJIT optimizations.\n"
   "  -i        Enter interactive mode after executing " LUA_QL("script") ".\n"
   "  -p file   Enable trace profiling to a VMProfile file.\n"
   "  -v        Show version information.\n"
@@ -115,7 +115,7 @@ static int docall(lua_State *L, int narg, int clear)
 
 static void print_version(void)
 {
-  fputs(LUAJIT_VERSION " -- " LUAJIT_COPYRIGHT ". " LUAJIT_URL "\n", stdout);
+  fputs(LUAJIT_VERSION " -- " LUAJIT_URL "\n", stdout);
 }
 
 static void print_jit_status(lua_State *L)
diff --git a/src/luajit.h b/src/luajit.h
index 16f8c13fde..9ce75ec79b 100644
--- a/src/luajit.h
+++ b/src/luajit.h
@@ -30,11 +30,11 @@
 
 #include "lua.h"
 
-#define LUAJIT_VERSION		"LuaJIT 2.1.0-beta2"
-#define LUAJIT_VERSION_NUM	20100  /* Version 2.1.0 = 02.01.00. */
+#define LUAJIT_VERSION		"RaptorJIT 1.0.0-alpha1"
+#define LUAJIT_VERSION_NUM	100000  /* Version 1.0.0 = 01.00.00. */
 #define LUAJIT_VERSION_SYM	luaJIT_version_2_1_0_beta2
-#define LUAJIT_COPYRIGHT	"Copyright (C) 2005-2017 Mike Pall"
-#define LUAJIT_URL		"http://luajit.org/"
+
+#define LUAJIT_URL		"http://github.com/raptorjit/raptorjit"
 
 /* Modes for luaJIT_setmode. */
 #define LUAJIT_MODE_MASK	0x00ff