diff --git a/src/ttl/Writer.cpp b/src/ttl/Writer.cpp
index 2bca9e1..20d7e91 100644
--- a/src/ttl/Writer.cpp
+++ b/src/ttl/Writer.cpp
@@ -88,7 +88,12 @@ osm2rdf::ttl::Writer<T>::Writer(const osm2rdf::config::Config& config,
       {osm2rdf::ttl::constants::NAMESPACE__OHM_RELATION,
        "https://www.openhistoricalmap.org/relation/"},
       {osm2rdf::ttl::constants::NAMESPACE__OHM_WAY,
-       "https://www.openhistoricalmap.org/way/"}};
+       "https://www.openhistoricalmap.org/way/"},
+      {osm2rdf::ttl::constants::NAMESPACE__OHM_USER,
+       "https://www.openhistoricalmap.org/user/"},
+      {osm2rdf::ttl::constants::NAMESPACE__OHM_CHANGESET,
+       "https://www.openhistoricalmap.org/changeset/"},
+  };
 
   // Generate constants
   osm2rdf::ttl::constants::IRI__GEOSPARQL__AS_WKT =
diff --git a/tests/ttl/Writer.cpp b/tests/ttl/Writer.cpp
index 7a2bc50..c8db7e2 100644
--- a/tests/ttl/Writer.cpp
+++ b/tests/ttl/Writer.cpp
@@ -704,8 +704,8 @@ TEST(TTL_WriterTTL, writeStatisticJson) {
   statsBuffer << statsIFStream.rdbuf();
 
   ASSERT_THAT(statsBuffer.str(), ::testing::HasSubstr("\"blankNodes\": 3"));
-  ASSERT_THAT(statsBuffer.str(), ::testing::HasSubstr("\"header\": 22"));
-  ASSERT_THAT(statsBuffer.str(), ::testing::HasSubstr("\"lines\": 27"));
+  ASSERT_THAT(statsBuffer.str(), ::testing::HasSubstr("\"header\": 24"));
+  ASSERT_THAT(statsBuffer.str(), ::testing::HasSubstr("\"lines\": 29"));
   ASSERT_THAT(statsBuffer.str(), ::testing::HasSubstr("\"triples\": 5"));
 
   // Cleanup
@@ -766,8 +766,8 @@ TEST(TTL_WriterQLEVER, writeStatisticJson) {
   statsBuffer << statsIFStream.rdbuf();
 
   ASSERT_THAT(statsBuffer.str(), ::testing::HasSubstr("\"blankNodes\": 3"));
-  ASSERT_THAT(statsBuffer.str(), ::testing::HasSubstr("\"header\": 22"));
-  ASSERT_THAT(statsBuffer.str(), ::testing::HasSubstr("\"lines\": 27"));
+  ASSERT_THAT(statsBuffer.str(), ::testing::HasSubstr("\"header\": 24"));
+  ASSERT_THAT(statsBuffer.str(), ::testing::HasSubstr("\"lines\": 29"));
   ASSERT_THAT(statsBuffer.str(), ::testing::HasSubstr("\"triples\": 5"));
 
   // Cleanup