diff --git a/src/postProcessing/functionObjects/field/mag/mag.C b/src/postProcessing/functionObjects/field/mag/mag.C
index b37a053c58..a5dfca1d41 100644
--- a/src/postProcessing/functionObjects/field/mag/mag.C
+++ b/src/postProcessing/functionObjects/field/mag/mag.C
@@ -50,12 +50,6 @@ bool Foam::functionObjects::mag::calc()
     processed = processed || calcMag<symmTensor>();
     processed = processed || calcMag<tensor>();
 
-    if (!processed)
-    {
-        WarningInFunction
-            << "Unprocessed field " << fieldName_ << endl;
-    }
-
     return processed;
 }
 
diff --git a/src/postProcessing/functionObjects/field/mag/mag.H b/src/postProcessing/functionObjects/field/mag/mag.H
index f27908762d..87ba471172 100644
--- a/src/postProcessing/functionObjects/field/mag/mag.H
+++ b/src/postProcessing/functionObjects/field/mag/mag.H
@@ -28,8 +28,9 @@ Group
     grpFieldFunctionObjects
 
 Description
-    This function object calculates the magnitude of a field.  The operation
-    can be applied to any volume or surface fieldsm and the output is a
+    This function object calculates the magnitude of a field.
+
+    The operation can be applied to any volume or surface fields generating a
     volume or surface scalar field.
 
 SeeAlso