diff --git a/examples/UC3-ECG.ttl b/examples/UC3-ECG.ttl
index 48648ae7fc25c953aeca3d1aff57c8a836e94f3f..a933c5ecd8582c0c732e6365fcc5c670ecaaad46 100644
--- a/examples/UC3-ECG.ttl
+++ b/examples/UC3-ECG.ttl
@@ -6,7 +6,6 @@
 @prefix saref: <https://saref.etsi.org/saref/core/> .
 @prefix s4ehaw: <https://saref.etsi.org/saref4ehaw/> .
 @prefix s4envi: <https://saref.etsi.org/saref4envi/> .
-@prefix s4wear: <https://saref.etsi.org/saref4wear/> .
 @prefix ssn-system: <http://www.w3.org/ns/ssn/systems/> .
 @base <https://saref.etsi.org/saref4ehaw/examples/UC3-ECG/> .