diff --git a/src/lagrangian/intermediate/parcels/Templates/ReactingParcel/ReactingParcelI.H b/src/lagrangian/intermediate/parcels/Templates/ReactingParcel/ReactingParcelI.H
index d4bb6002c1..2434881401 100644
--- a/src/lagrangian/intermediate/parcels/Templates/ReactingParcel/ReactingParcelI.H
+++ b/src/lagrangian/intermediate/parcels/Templates/ReactingParcel/ReactingParcelI.H
@@ -55,7 +55,7 @@ inline Foam::ReactingParcel<ParcelType>::constantProperties::constantProperties
 :
     ParcelType::constantProperties(parentDict),
     pMin_(this->dict_, "pMin", 1000.0),
-    constantVolume_(this->dict_, "constantVolume")
+    constantVolume_(this->dict_, word("constantVolume"))
 {}