diff --git a/src/lagrangian/basic/particle/particleIO.C b/src/lagrangian/basic/particle/particleIO.C
index 5ed13963da..8115ad62f5 100644
--- a/src/lagrangian/basic/particle/particleIO.C
+++ b/src/lagrangian/basic/particle/particleIO.C
@@ -199,7 +199,6 @@ void Foam::particle::writePosition(Ostream& os) const
         p.position = position();
         p.celli = celli_;
 
-        vector pos(position());
         os.write(reinterpret_cast<const char*>(&p.position), s);
     }