3 files changed, 5 insertions, 3 deletions

diff --git a/embed.pl b/embed.pl
index 81bee1fd84..93534359b3 100755
--- a/embed.pl
+++ b/embed.pl
@@ -1680,7 +1680,7 @@ p	|int	|magic_mutexfree|SV* sv|MAGIC* mg
 p	|int	|magic_nextpack	|SV* sv|MAGIC* mg|SV* key
 p	|U32	|magic_regdata_cnt|SV* sv|MAGIC* mg
 p	|int	|magic_regdatum_get|SV* sv|MAGIC* mg
-p	|void	|magic_regdatum_set|SV* sv|MAGIC* mg
+p	|int	|magic_regdatum_set|SV* sv|MAGIC* mg
 p	|int	|magic_set	|SV* sv|MAGIC* mg
 p	|int	|magic_setamagic|SV* sv|MAGIC* mg
 p	|int	|magic_setarylen|SV* sv|MAGIC* mg
diff --git a/mg.c b/mg.c
index c0d6132a46..d4e1a043d9 100644
--- a/mg.c
+++ b/mg.c
@@ -379,11 +379,13 @@ Perl_magic_regdatum_get(pTHX_ SV *sv, MAGIC *mg)
     return 0;
 }
 
-void
+int
 Perl_magic_regdatum_set(pTHX_ SV *sv, MAGIC *mg)
 {
     dTHR;
     Perl_croak(aTHX_ PL_no_modify);
+    /* NOT REACHED */
+    return 0;
 }
 
 U32
diff --git a/proto.h b/proto.h
index 65d2bb11a5..841e32a32e 100644
--- a/proto.h
+++ b/proto.h
@@ -427,7 +427,7 @@ PERL_CALLCONV int	Perl_magic_mutexfree(pTHX_ SV* sv, MAGIC* mg);
 PERL_CALLCONV int	Perl_magic_nextpack(pTHX_ SV* sv, MAGIC* mg, SV* key);
 PERL_CALLCONV U32	Perl_magic_regdata_cnt(pTHX_ SV* sv, MAGIC* mg);
 PERL_CALLCONV int	Perl_magic_regdatum_get(pTHX_ SV* sv, MAGIC* mg);
-PERL_CALLCONV void	Perl_magic_regdatum_set(pTHX_ SV* sv, MAGIC* mg);
+PERL_CALLCONV int	Perl_magic_regdatum_set(pTHX_ SV* sv, MAGIC* mg);
 PERL_CALLCONV int	Perl_magic_set(pTHX_ SV* sv, MAGIC* mg);
 PERL_CALLCONV int	Perl_magic_setamagic(pTHX_ SV* sv, MAGIC* mg);
 PERL_CALLCONV int	Perl_magic_setarylen(pTHX_ SV* sv, MAGIC* mg);