diff --git a/README.md b/README.md
index 3bc18b5d..7cbca397 100644
--- a/README.md
+++ b/README.md
@@ -125,7 +125,7 @@ Options:
                                pattern (default is false)
       --sf, --separateFiles  generate a separate file for each class (default
                                is false)
-      --dnfin, --noNotForceIsNullable
+      --dnfin, --doNotForceIsNullable
                              do not force generator to emit IsNullable = true
                                in XmlElement annotation for nillable elements
                                when element is nullable (minOccurs < 1 or
diff --git a/XmlSchemaClassGenerator.Console/Program.cs b/XmlSchemaClassGenerator.Console/Program.cs
index f620927b..65db3582 100644
--- a/XmlSchemaClassGenerator.Console/Program.cs
+++ b/XmlSchemaClassGenerator.Console/Program.cs
@@ -121,7 +121,7 @@ A file name may be given by appending a pipe sign (|) followed by a file name (l
                 { "cc|complexTypesForCollections", "generate complex types for collections (default is true)", v => generateComplexTypesForCollections = v != null },
                 { "s|useShouldSerialize", "use ShouldSerialize pattern instead of Specified pattern (default is false)", v => useShouldSerialize = v != null },
                 { "sf|separateFiles", "generate a separate file for each class (default is false)", v => separateClasses = v != null },
-                { "dnfin|noNotForceIsNullable", "do not force generator to emit IsNullable = true in XmlElement annotation for nillable elements when element is nullable (minOccurs < 1 or parent element is choice) (default is false)", v => doNotForceIsNullable = v != null }
+                { "dnfin|doNotForceIsNullable", "do not force generator to emit IsNullable = true in XmlElement annotation for nillable elements when element is nullable (minOccurs < 1 or parent element is choice) (default is false)", v => doNotForceIsNullable = v != null }
             };
 
             var globsAndUris = options.Parse(args);