diff --git a/src/functionObjects/field/derivedFields/derivedFields.C b/src/functionObjects/field/derivedFields/derivedFields.C
index ff432f60e3..e11f1b6d58 100644
--- a/src/functionObjects/field/derivedFields/derivedFields.C
+++ b/src/functionObjects/field/derivedFields/derivedFields.C
@@ -89,6 +89,7 @@ static bool calc_rhoU
             IOobject
             (
                 derivedName,
+                mesh.time().timeName(),
                 mesh,
                 IOobject::NO_READ,
                 IOobject::NO_WRITE,
@@ -142,6 +143,7 @@ static bool calc_pTotal
             IOobject
             (
                 derivedName,
+                mesh.time().timeName(),
                 mesh,
                 IOobject::NO_READ,
                 IOobject::NO_WRITE,