diff --git a/src/surfMesh/surfaceFormats/stl/STLpoint.H b/src/surfMesh/surfaceFormats/stl/STLpoint.H
index 157e832ba5a66581799ac4049f1b30ef792929f3..eb0d9fccd2eefb4578e770eac738ac3b4954fba6 100644
--- a/src/surfMesh/surfaceFormats/stl/STLpoint.H
+++ b/src/surfMesh/surfaceFormats/stl/STLpoint.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     |
-    \\  /    A nd           | Copyright (C) 2011-2013 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2016 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -80,11 +80,13 @@ public:
 
     // Member Operators
 
-        //- Conversion to point
+        #ifdef WM_DP
+        //- Conversion to double-precision point
         inline operator point() const
         {
             return point(x(), y(), z());
         }
+        #endif
 };