diff --git a/src/racket/include/mzwin.def b/src/racket/include/mzwin.def
index 4c40d29944..9dde09cf63 100644
--- a/src/racket/include/mzwin.def
+++ b/src/racket/include/mzwin.def
@@ -134,6 +134,7 @@ EXPORTS
  scheme_uchar_titles
  scheme_uchar_folds
  scheme_uchar_combining_classes
+ scheme_on_demand_jit_code
  scheme_eval
  scheme_eval_multi
  scheme_eval_with_prompt
diff --git a/src/racket/include/mzwin3m.def b/src/racket/include/mzwin3m.def
index 25e99ccfc7..b38a0c7c83 100644
--- a/src/racket/include/mzwin3m.def
+++ b/src/racket/include/mzwin3m.def
@@ -134,6 +134,7 @@ EXPORTS
  scheme_uchar_titles
  scheme_uchar_folds
  scheme_uchar_combining_classes
+ scheme_on_demand_jit_code
  scheme_eval
  scheme_eval_multi
  scheme_eval_with_prompt
diff --git a/src/racket/include/racket.exp b/src/racket/include/racket.exp
index d24017f152..e1a80b149b 100644
--- a/src/racket/include/racket.exp
+++ b/src/racket/include/racket.exp
@@ -132,6 +132,7 @@ scheme_uchar_downs
 scheme_uchar_titles
 scheme_uchar_folds
 scheme_uchar_combining_classes
+scheme_on_demand_jit_code
 scheme_eval
 scheme_eval_multi
 scheme_eval_with_prompt
diff --git a/src/racket/include/racket3m.exp b/src/racket/include/racket3m.exp
index 1f0d86d2da..b32ba6cb22 100644
--- a/src/racket/include/racket3m.exp
+++ b/src/racket/include/racket3m.exp
@@ -132,6 +132,7 @@ scheme_uchar_downs
 scheme_uchar_titles
 scheme_uchar_folds
 scheme_uchar_combining_classes
+scheme_on_demand_jit_code
 scheme_eval
 scheme_eval_multi
 scheme_eval_with_prompt
diff --git a/src/racket/src/future.h b/src/racket/src/future.h
index f9f592fca9..abeee7e2a7 100644
--- a/src/racket/src/future.h
+++ b/src/racket/src/future.h
@@ -172,7 +172,6 @@ extern Scheme_Object *scheme_rtcall_make_fsemaphore(const char *who, int src_typ
 
 #endif 
 
-extern void *scheme_on_demand_jit_code;
 extern void scheme_on_demand_generate_lambda(Scheme_Native_Closure *nc, int argc, Scheme_Object **argv);
 
 void scheme_future_block_until_gc();
diff --git a/src/racket/src/jit.h b/src/racket/src/jit.h
index d9cf812cd5..d73e5c936b 100644
--- a/src/racket/src/jit.h
+++ b/src/racket/src/jit.h
@@ -262,7 +262,6 @@ struct scheme_jit_common_record {
 };
 
 extern struct scheme_jit_common_record scheme_jit_common;
-extern void *scheme_on_demand_jit_code;
 
 #define sjc scheme_jit_common
 
diff --git a/src/racket/src/schemef.h b/src/racket/src/schemef.h
index ceb1dde411..e4fa097b8a 100644
--- a/src/racket/src/schemef.h
+++ b/src/racket/src/schemef.h
@@ -269,6 +269,8 @@ MZ_EXTERN int scheme_uchar_titles[];
 MZ_EXTERN int scheme_uchar_folds[];
 MZ_EXTERN unsigned char scheme_uchar_combining_classes[];
 
+MZ_EXTERN void *scheme_on_demand_jit_code;
+
 /*========================================================================*/
 /*                              evaluation                                */
 /*========================================================================*/
diff --git a/src/racket/src/schemex.h b/src/racket/src/schemex.h
index 721e13bad0..99081b1191 100644
--- a/src/racket/src/schemex.h
+++ b/src/racket/src/schemex.h
@@ -18,7 +18,7 @@
    declaring scheme_extension_table */
 
 /* The scheme_extension_table "parser" is picky; don't leave a space
-   between a function name and its opening parameter parenthesis. */
+   between a function name and it's opening parameter parenthesis. */
 
 /* After this START tag, all comments should start & end on same line */
 
@@ -217,6 +217,7 @@ int *scheme_uchar_downs;
 int *scheme_uchar_titles;
 int *scheme_uchar_folds;
 unsigned char *scheme_uchar_combining_classes;
+void *scheme_on_demand_jit_code;
 /*========================================================================*/
 /*                              evaluation                                */
 /*========================================================================*/
diff --git a/src/racket/src/schemex.inc b/src/racket/src/schemex.inc
index 73e1a52379..911b38ea61 100644
--- a/src/racket/src/schemex.inc
+++ b/src/racket/src/schemex.inc
@@ -140,6 +140,7 @@
   scheme_extension_table->scheme_uchar_titles = scheme_uchar_titles;
   scheme_extension_table->scheme_uchar_folds = scheme_uchar_folds;
   scheme_extension_table->scheme_uchar_combining_classes = scheme_uchar_combining_classes;
+  scheme_extension_table->scheme_on_demand_jit_code = scheme_on_demand_jit_code;
   scheme_extension_table->scheme_eval = scheme_eval;
   scheme_extension_table->scheme_eval_multi = scheme_eval_multi;
   scheme_extension_table->scheme_eval_with_prompt = scheme_eval_with_prompt;
diff --git a/src/racket/src/schemexm.h b/src/racket/src/schemexm.h
index adac620c93..e1c74e981b 100644
--- a/src/racket/src/schemexm.h
+++ b/src/racket/src/schemexm.h
@@ -140,6 +140,7 @@
 #define scheme_uchar_titles (scheme_extension_table->scheme_uchar_titles)
 #define scheme_uchar_folds (scheme_extension_table->scheme_uchar_folds)
 #define scheme_uchar_combining_classes (scheme_extension_table->scheme_uchar_combining_classes)
+#define scheme_on_demand_jit_code (scheme_extension_table->scheme_on_demand_jit_code)
 #define scheme_eval (scheme_extension_table->scheme_eval)
 #define scheme_eval_multi (scheme_extension_table->scheme_eval_multi)
 #define scheme_eval_with_prompt (scheme_extension_table->scheme_eval_with_prompt)