diff --git a/Koha/Plugins/Base.pm b/Koha/Plugins/Base.pm
index a5cb15e3c1..d6323e830e 100644
--- a/Koha/Plugins/Base.pm
+++ b/Koha/Plugins/Base.pm
@@ -179,7 +179,7 @@ sub get_metadata {
 
     #FIXME: Why another encoding issue? For metadata containing non latin characters.
     my $metadata = $self->{metadata};
-    $metadata->{$_} && utf8::decode($metadata->{$_}) for keys %$metadata;
+    defined($metadata->{$_}) && utf8::decode($metadata->{$_}) for keys %$metadata;
     return $metadata;
 }