diff --git a/src/OpenFOAM/primitives/functions/Function1/Table/TableBase.C b/src/OpenFOAM/primitives/functions/Function1/Table/TableBase.C
index 3b12a3d4c2..497e4b4cd6 100644
--- a/src/OpenFOAM/primitives/functions/Function1/Table/TableBase.C
+++ b/src/OpenFOAM/primitives/functions/Function1/Table/TableBase.C
@@ -78,7 +78,12 @@ Foam::Function1Types::TableBase<Type>::TableBase
     ),
     interpolationScheme_
     (
-        dict.getOrDefault<word>("interpolationScheme", "linear")
+        dict.getOrDefault<word>
+        (
+            "interpolationScheme",
+            "linear",
+            keyType::LITERAL
+        )
     ),
     table_(),
     tableSamplesPtr_(nullptr),