diff --git a/src/thermophysicalModels/solids/solid/solid.H b/src/thermophysicalModels/solids/solid/solid.H
index 189feba08b..bacdae17e4 100644
--- a/src/thermophysicalModels/solids/solid/solid.H
+++ b/src/thermophysicalModels/solids/solid/solid.H
@@ -131,7 +131,7 @@ public:
 
     // Member Functions
 
-        // Phisical constants which define the solid
+        // Physical constants which define the solid
 
             //- Density [kg/m3]
             inline scalar rho() const;