diff --git a/src/OpenFOAM/dimensionedTypes/dimensionedScalar/dimensionedScalar.C b/src/OpenFOAM/dimensionedTypes/dimensionedScalar/dimensionedScalar.C
index a08224dd4308db4793c5fd7d952d5f4ff7415042..36cfd55827d33cc9d97e9457f80273b889d135ae 100644
--- a/src/OpenFOAM/dimensionedTypes/dimensionedScalar/dimensionedScalar.C
+++ b/src/OpenFOAM/dimensionedTypes/dimensionedScalar/dimensionedScalar.C
@@ -155,7 +155,7 @@ dimensionedScalar cbrt(const dimensionedScalar& ds)
     return dimensionedScalar
     (
         "cbrt(" + ds.name() + ')',
-        pow(ds.dimensions(), dimensionedScalar("(1/3)", dimless, 1.0/3.0)),
+        pow(ds.dimensions(), dimensionedScalar("(1|3)", dimless, 1.0/3.0)),
         ::cbrt(ds.value())
     );
 }