diff --git a/src/mzscheme/src/env.c b/src/mzscheme/src/env.c
index 73c1d63028..37bd0065fb 100644
--- a/src/mzscheme/src/env.c
+++ b/src/mzscheme/src/env.c
@@ -391,6 +391,7 @@ static Scheme_Env *place_instance_init_post_kernel() {
   scheme_init_error_escape_proc(NULL);
   scheme_init_print_buffers_places();
   scheme_init_eval_places();
+  scheme_init_regexp_places();
 
   env = scheme_make_empty_env();
   scheme_set_param(scheme_current_config(), MZCONFIG_ENV, (Scheme_Object *)env); 
diff --git a/src/mzscheme/src/regexp.c b/src/mzscheme/src/regexp.c
index e647a5b75f..a8217b8d7b 100644
--- a/src/mzscheme/src/regexp.c
+++ b/src/mzscheme/src/regexp.c
@@ -5545,11 +5545,6 @@ void scheme_regexp_initialize(Scheme_Env *env)
   GC_REG_TRAV(scheme_rt_regwork, mark_regwork);
 #endif
 
-  REGISTER_SO(regparsestr);
-  REGISTER_SO(regstr);
-  REGISTER_SO(regbackknown);
-  REGISTER_SO(regbackdepends);
-  
   GLOBAL_PRIM_W_ARITY("byte-regexp",                           make_regexp,             1, 1, env);
   GLOBAL_PRIM_W_ARITY("regexp",                                make_utf8_regexp,        1, 1, env);
   GLOBAL_PRIM_W_ARITY("byte-pregexp",                          make_pregexp,            1, 1, env);
@@ -5569,3 +5564,11 @@ void scheme_regexp_initialize(Scheme_Env *env)
   GLOBAL_FOLDING_PRIM("pregexp?",                              pregexp_p,       1, 1, 1, env);
   GLOBAL_FOLDING_PRIM("byte-pregexp?",                         byte_pregexp_p,  1, 1, 1, env);
 }
+
+void scheme_init_regexp_places()
+{
+  REGISTER_SO(regparsestr);
+  REGISTER_SO(regstr);
+  REGISTER_SO(regbackknown);
+  REGISTER_SO(regbackdepends);
+}
diff --git a/src/mzscheme/src/schpriv.h b/src/mzscheme/src/schpriv.h
index 64bcc9e680..0cf3ef2b66 100644
--- a/src/mzscheme/src/schpriv.h
+++ b/src/mzscheme/src/schpriv.h
@@ -222,6 +222,8 @@ void scheme_init_place(Scheme_Env *env);
 void scheme_init_print_buffers_places(void);
 void scheme_init_eval_places(void);
 void scheme_init_port_places(void);
+void scheme_init_regexp_places(void);
+
 
 void scheme_free_dynamic_extensions(void);