diff --git a/src/finiteVolume/fields/fvPatchFields/derived/inletOutletTotalTemperature/inletOutletTotalTemperatureFvPatchScalarField.H b/src/finiteVolume/fields/fvPatchFields/derived/inletOutletTotalTemperature/inletOutletTotalTemperatureFvPatchScalarField.H
index 1f0b695231..76cd359a33 100644
--- a/src/finiteVolume/fields/fvPatchFields/derived/inletOutletTotalTemperature/inletOutletTotalTemperatureFvPatchScalarField.H
+++ b/src/finiteVolume/fields/fvPatchFields/derived/inletOutletTotalTemperature/inletOutletTotalTemperatureFvPatchScalarField.H
@@ -37,7 +37,7 @@ Usage
         Property     | Description             | Required    | Default value
         U            | velocity field name     | no          | U
         phi          | flux field name         | no          | phi
-        psi          | compressibility field name |  no      | psi
+        psi          | compressibility field name |  no      | thermo:psi
         gamma        | heat capacity ration (Cp/Cv) | yes    |
         inletValue   | reverse flow (inlet) value | yes      |
         T0           | static temperature [K]  | yes         |
diff --git a/src/finiteVolume/fields/fvPatchFields/derived/waveTransmissive/waveTransmissiveFvPatchField.H b/src/finiteVolume/fields/fvPatchFields/derived/waveTransmissive/waveTransmissiveFvPatchField.H
index e2e6a6c960..63865c8892 100644
--- a/src/finiteVolume/fields/fvPatchFields/derived/waveTransmissive/waveTransmissiveFvPatchField.H
+++ b/src/finiteVolume/fields/fvPatchFields/derived/waveTransmissive/waveTransmissiveFvPatchField.H
@@ -52,7 +52,7 @@ Usage
         Property     | Description             | Required    | Default value
         phi          | flux field name         | no          | phi
         rho          | density field name      | no          | rho
-        psi          | compressibility field name | no       | psi
+        psi          | compressibility field name | no       | thermo:psi
         gamma        | ratio of specific heats (Cp/Cv) | yes |
     \endtable