diff --git a/src/thermophysicalModels/thermophysicalProperties/thermophysicalFunctions/nonUniformTable/nonUniformTableThermophysicalFunctionI.H b/src/thermophysicalModels/thermophysicalProperties/thermophysicalFunctions/nonUniformTable/nonUniformTableThermophysicalFunctionI.H
index 0e72c64060..0b20fec8b2 100644
--- a/src/thermophysicalModels/thermophysicalProperties/thermophysicalFunctions/nonUniformTable/nonUniformTableThermophysicalFunctionI.H
+++ b/src/thermophysicalModels/thermophysicalProperties/thermophysicalFunctions/nonUniformTable/nonUniformTableThermophysicalFunctionI.H
@@ -37,7 +37,7 @@ inline Foam::label Foam::nonUniformTable::index
 ) const
 {
     scalar nd = 0;
-    if (T > Trange_.min() || T < Trange_.max())
+    if (T > Trange_.min() && T < Trange_.max())
     {
         nd = (T - Trange_.min())/deltaT_;
     }