diff options
| -rw-r--r-- | src/raptor_serialize_dot.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/src/raptor_serialize_dot.c b/src/raptor_serialize_dot.c index dfb0261c..da2c444a 100644 --- a/src/raptor_serialize_dot.c +++ b/src/raptor_serialize_dot.c @@ -709,8 +709,11 @@ raptor_dot_serializer_end(raptor_serializer* serializer) raptor_iostream_write_string(serializer->iostream, (const unsigned char *)"\n\tlabel=\"\\n\\nModel:\\n"); - raptor_iostream_write_string(serializer->iostream, - raptor_uri_as_string(serializer->base_uri)); + if(serializer->base_uri) + raptor_iostream_write_string(serializer->iostream, + raptor_uri_as_string(serializer->base_uri)); + else + raptor_iostream_write_string(serializer->iostream, "(Unknown)"); if(raptor_sequence_size(context->namespaces)) { raptor_iostream_write_string(serializer->iostream, |