diff --git a/sql/sp.cc b/sql/sp.cc
index 9c130eac52d..da1b9e9212f 100644
--- a/sql/sp.cc
+++ b/sql/sp.cc
@@ -41,7 +41,7 @@ static int
 db_load_routine(THD *thd, stored_procedure_type type, const sp_name *name,
                 sp_head **sphp,
                 sql_mode_t sql_mode, const char *params, const char *returns,
-                const char *body, st_sp_chistics &chistics,
+                const char *body, const st_sp_chistics &chistics,
                 LEX_CSTRING *definer_user_name,
                 LEX_CSTRING *definer_host_name,
                 longlong created, longlong modified,
@@ -813,7 +813,7 @@ static int
 db_load_routine(THD *thd, stored_procedure_type type,
                 const sp_name *name, sp_head **sphp,
                 sql_mode_t sql_mode, const char *params, const char *returns,
-                const char *body, st_sp_chistics &chistics,
+                const char *body, const st_sp_chistics &chistics,
                 LEX_CSTRING *definer_user_name,
                 LEX_CSTRING *definer_host_name,
                 longlong created, longlong modified,
@@ -1392,7 +1392,7 @@ sp_drop_routine(THD *thd, stored_procedure_type type, const sp_name *name)
 
 int
 sp_update_routine(THD *thd, stored_procedure_type type, const sp_name *name,
-                  st_sp_chistics *chistics)
+                  const st_sp_chistics *chistics)
 {
   TABLE *table;
   int ret;
@@ -2201,7 +2201,7 @@ show_create_sp(THD *thd, String *buf,
               const char *params, ulong paramslen,
               const char *returns, ulong returnslen,
               const char *body, ulong bodylen,
-              st_sp_chistics *chistics,
+              const st_sp_chistics *chistics,
               const LEX_CSTRING *definer_user,
               const LEX_CSTRING *definer_host,
               sql_mode_t sql_mode)
diff --git a/sql/sp.h b/sql/sp.h
index 748610c1a9c..d33c767369e 100644
--- a/sql/sp.h
+++ b/sql/sp.h
@@ -145,7 +145,7 @@ sp_create_routine(THD *thd, stored_procedure_type type, sp_head *sp);
 
 int
 sp_update_routine(THD *thd, stored_procedure_type type, const sp_name *name,
-                  st_sp_chistics *chistics);
+                  const st_sp_chistics *chistics);
 
 int
 sp_drop_routine(THD *thd, stored_procedure_type type, const sp_name *name);
@@ -240,7 +240,7 @@ bool show_create_sp(THD *thd, String *buf,
               const char *params, ulong paramslen,
               const char *returns, ulong returnslen,
               const char *body, ulong bodylen,
-              st_sp_chistics *chistics,
+              const st_sp_chistics *chistics,
               const LEX_CSTRING *definer_user,
               const LEX_CSTRING *definer_host,
 	      sql_mode_t sql_mode);
diff --git a/sql/sp_head.cc b/sql/sp_head.cc
index c87a15ff927..aa69de3f024 100644
--- a/sql/sp_head.cc
+++ b/sql/sp_head.cc
@@ -2455,7 +2455,7 @@ sp_head::sp_add_instr_cpush_for_cursors(THD *thd, sp_pcontext *pcontext)
 
 void
 sp_head::set_info(longlong created, longlong modified,
-                  st_sp_chistics *chistics, sql_mode_t sql_mode)
+                  const st_sp_chistics *chistics, sql_mode_t sql_mode)
 {
   m_created= created;
   m_modified= modified;
diff --git a/sql/sp_head.h b/sql/sp_head.h
index a96ef514429..f9d14378b7b 100644
--- a/sql/sp_head.h
+++ b/sql/sp_head.h
@@ -673,7 +673,7 @@ public:
   }
 
   void set_info(longlong created, longlong modified,
-		st_sp_chistics *chistics, sql_mode_t sql_mode);
+		const st_sp_chistics *chistics, sql_mode_t sql_mode);
 
   void set_definer(const char *definer, uint definerlen);
   void set_definer(const LEX_CSTRING *user_name, const LEX_CSTRING *host_name);