diff --git a/src/lagrangian/basic/injectedParticle/injectedParticleIO.C b/src/lagrangian/basic/injectedParticle/injectedParticleIO.C
index 4fa325b9e4..eb3185ab39 100644
--- a/src/lagrangian/basic/injectedParticle/injectedParticleIO.C
+++ b/src/lagrangian/basic/injectedParticle/injectedParticleIO.C
@@ -76,7 +76,7 @@ Foam::injectedParticle::injectedParticle
         }
         else
         {
-            is.read(reinterpret_cast<char*>(&soi_), sizeofFields);
+            is.read(reinterpret_cast<char*>(&tag_), sizeofFields);
         }
     }