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-rw-r--r--src/World.cpp1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/World.cpp b/src/World.cpp
index e12e9c63..55cdea9c 100644
--- a/src/World.cpp
+++ b/src/World.cpp
@@ -133,6 +133,7 @@ public:
rdf_world->add_prefix("lv2", "http://lv2plug.in/ns/lv2core#");
rdf_world->add_prefix("midi", "http://lv2plug.in/ns/ext/midi#");
rdf_world->add_prefix("owl", "http://www.w3.org/2002/07/owl#");
+ rdf_world->add_prefix("rdf", "http://www.w3.org/1999/02/22-rdf-syntax-ns#");
rdf_world->add_prefix("rdfs", "http://www.w3.org/2000/01/rdf-schema#");
rdf_world->add_prefix("xsd", "http://www.w3.org/2001/XMLSchema#");