diff --git a/modules/Bio/EnsEMBL/Utils/IO/GFFSerializer.pm b/modules/Bio/EnsEMBL/Utils/IO/GFFSerializer.pm
index 5d96988a94a4d4eef49052e745947a07e33ac286..b40f47c84fcd8b06adb168fb9f5aa1ce48a8ef58 100644
--- a/modules/Bio/EnsEMBL/Utils/IO/GFFSerializer.pm
+++ b/modules/Bio/EnsEMBL/Utils/IO/GFFSerializer.pm
@@ -327,7 +327,7 @@ sub print_main_header {
 
     # Get the build. name gives us GRCh37.p1 where as default gives us GRCh37
     my $assembly_name = $gc->get_assembly_name();
-    my $providers = $mc->list_value_by_key('provider.name') || '';
+    my $providers = $mc->list_value_by_key('assembly.provider_name') || '';
     my $provider = join(";", @$providers);
     print $fh "#!genome-build $provider $assembly_name\n" if $assembly_name;
 
diff --git a/scripts/gff3_serializer.pl b/scripts/gff3_serializer.pl
index 9bcbdfa90713e945437058bdfa4e4e726a1a095b..169d07874e063c0ce8a563f78a1bc288603d2bd2 100644
--- a/scripts/gff3_serializer.pl
+++ b/scripts/gff3_serializer.pl
@@ -92,7 +92,7 @@ my $gc = $dba->get_GenomeContainer();
 
 # Get the build. name gives us GRCh37.p1 where as default gives us GRCh37
 my $assembly_name = $gc->get_assembly_name();
-my $providers = $mc->list_value_by_key('provider.name') || '';
+my $providers = $mc->list_value_by_key('assembly.provider_name') || '';
 my $provider = join(";", @$providers);
 $serializer->write(Bio::EnsEMBL::IO::Object::GXFMetadata->ens_directive('genome-build', $provider, $assembly_name)) if $assembly_name;
  
diff --git a/scripts/gtf_serializer.pl b/scripts/gtf_serializer.pl
index 497b4abcfa26710e15b877a71542709507ced8e7..a65c53d1e386eec0b25a4ec19795af2219c27a31 100644
--- a/scripts/gtf_serializer.pl
+++ b/scripts/gtf_serializer.pl
@@ -90,7 +90,7 @@ my $gc = $dba->get_GenomeContainer();
 
 # Get the build. name gives us GRCh37.p1 where as default gives us GRCh37
 my $assembly_name = $gc->get_assembly_name();
-my $providers = $mc->list_value_by_key('provider.name') || '';
+my $providers = $mc->list_value_by_key('assembly.provider_name') || '';
 my $provider = join(";", @$providers);
 $serializer->write(Bio::EnsEMBL::IO::Object::GXFMetadata->ens_directive('genome-build', $provider, $assembly_name)) if $assembly_name;