diff --git a/README.md b/README.md
index 491e60a..681bc96 100644
--- a/README.md
+++ b/README.md
@@ -410,6 +410,7 @@ Set the encoding method of the input and output.
 
 ### <a name="basic_options-buffersize"></a>`bufferSize`
 
+_For `question*` and `prompt*` methods only_  
 *Type:* number  
 *Default:* `1024`
 
@@ -740,8 +741,8 @@ The following option has independent default value that is not affected by [Defa
 The following options work as shown in the [Basic Options](#basic_options) section.
 
 <table>
-<tr><td><a href="#basic_options-hideechoback"><code>hideEchoBack</code></a></td><td><a href="#basic_options-mask"><code>mask</code></a></td><td><a href="#basic_options-defaultinput"><code>defaultInput</code></a></td><td><a href="#basic_options-casesensitive"><code>caseSensitive</code></a></td><td><a href="#basic_options-keepwhitespace"><code>keepWhitespace</code></a></td></tr>
-<tr><td><a href="#basic_options-encoding"><code>encoding</code></a></td><td><a href="#basic_options-buffersize"><code>bufferSize</code></a></td><td><a href="#basic_options-print"><code>print</code></a></td><td><a href="#basic_options-history"><code>history</code></a></td></tr>
+<tr><td><a href="#basic_options-hideechoback"><code>hideEchoBack</code></a></td><td><a href="#basic_options-mask"><code>mask</code></a></td><td><a href="#basic_options-defaultinput"><code>defaultInput</code></a></td><td><a href="#basic_options-encoding"><code>encoding</code></a></td><td><a href="#basic_options-buffersize"><code>bufferSize</code></a></td></tr>
+<tr><td><a href="#basic_options-print"><code>print</code></a></td><td><a href="#basic_options-history"><code>history</code></a></td></tr>
 </table>
 
 ### <a name="utility_methods-questionfloat"></a>`questionFloat`
@@ -766,8 +767,8 @@ The following option has independent default value that is not affected by [Defa
 The following options work as shown in the [Basic Options](#basic_options) section.
 
 <table>
-<tr><td><a href="#basic_options-hideechoback"><code>hideEchoBack</code></a></td><td><a href="#basic_options-mask"><code>mask</code></a></td><td><a href="#basic_options-defaultinput"><code>defaultInput</code></a></td><td><a href="#basic_options-casesensitive"><code>caseSensitive</code></a></td><td><a href="#basic_options-keepwhitespace"><code>keepWhitespace</code></a></td></tr>
-<tr><td><a href="#basic_options-encoding"><code>encoding</code></a></td><td><a href="#basic_options-buffersize"><code>bufferSize</code></a></td><td><a href="#basic_options-print"><code>print</code></a></td><td><a href="#basic_options-history"><code>history</code></a></td></tr>
+<tr><td><a href="#basic_options-hideechoback"><code>hideEchoBack</code></a></td><td><a href="#basic_options-mask"><code>mask</code></a></td><td><a href="#basic_options-defaultinput"><code>defaultInput</code></a></td><td><a href="#basic_options-encoding"><code>encoding</code></a></td><td><a href="#basic_options-buffersize"><code>bufferSize</code></a></td></tr>
+<tr><td><a href="#basic_options-print"><code>print</code></a></td><td><a href="#basic_options-history"><code>history</code></a></td></tr>
 </table>
 
 ### <a name="utility_methods-questionpath"></a>`questionPath`
@@ -828,8 +829,7 @@ The following options have independent default value that is not affected by [De
 The following options work as shown in the [Basic Options](#basic_options) section.
 
 <table>
-<tr><td><a href="#basic_options-mask"><code>mask</code></a></td><td><a href="#basic_options-defaultinput"><code>defaultInput</code></a></td><td><a href="#basic_options-casesensitive"><code>caseSensitive</code></a></td><td><a href="#basic_options-encoding"><code>encoding</code></a></td><td><a href="#basic_options-buffersize"><code>bufferSize</code></a></td></tr>
-<tr><td><a href="#basic_options-print"><code>print</code></a></td></tr>
+<tr><td><a href="#basic_options-mask"><code>mask</code></a></td><td><a href="#basic_options-defaultinput"><code>defaultInput</code></a></td><td><a href="#basic_options-encoding"><code>encoding</code></a></td><td><a href="#basic_options-buffersize"><code>bufferSize</code></a></td><td><a href="#basic_options-print"><code>print</code></a></td></tr>
 </table>
 
 And the following additional options are available.
@@ -1214,7 +1214,7 @@ if (readlineSync.keyInYN('Continue virus scan?') === false) {
 The following options work as shown in the [Basic Options](#basic_options) section.
 
 <table>
-<tr><td><a href="#basic_options-encoding"><code>encoding</code></a></td><td><a href="#basic_options-buffersize"><code>bufferSize</code></a></td><td><a href="#basic_options-print"><code>print</code></a></td></tr>
+<tr><td><a href="#basic_options-encoding"><code>encoding</code></a></td><td><a href="#basic_options-print"><code>print</code></a></td></tr>
 </table>
 
 And the following additional option is available.
@@ -1300,7 +1300,7 @@ The following option has independent default value that is not affected by [Defa
 The following options work as shown in the [Basic Options](#basic_options) section.
 
 <table>
-<tr><td><a href="#basic_options-casesensitive"><code>caseSensitive</code></a></td><td><a href="#basic_options-encoding"><code>encoding</code></a></td><td><a href="#basic_options-buffersize"><code>bufferSize</code></a></td><td><a href="#basic_options-print"><code>print</code></a></td></tr>
+<tr><td><a href="#basic_options-casesensitive"><code>caseSensitive</code></a></td><td><a href="#basic_options-encoding"><code>encoding</code></a></td><td><a href="#basic_options-print"><code>print</code></a></td></tr>
 </table>
 
 And the following additional option is available.
@@ -1366,7 +1366,7 @@ The following option has independent default value that is not affected by [Defa
 The following options work as shown in the [Basic Options](#basic_options) section.
 
 <table>
-<tr><td><a href="#basic_options-mask"><code>mask</code></a></td><td><a href="#basic_options-encoding"><code>encoding</code></a></td><td><a href="#basic_options-buffersize"><code>bufferSize</code></a></td><td><a href="#basic_options-print"><code>print</code></a></td></tr>
+<tr><td><a href="#basic_options-mask"><code>mask</code></a></td><td><a href="#basic_options-encoding"><code>encoding</code></a></td><td><a href="#basic_options-print"><code>print</code></a></td></tr>
 </table>
 
 And the following additional options are available.
diff --git a/lib/readline-sync.js b/lib/readline-sync.js
index 505875b..3d3a1b6 100644
--- a/lib/readline-sync.js
+++ b/lib/readline-sync.js
@@ -923,7 +923,7 @@ function _questionNum(query, options, parser) {
       // -------- forced
       limit:              getValidValue,
       cd:                 false
-      // trueValue, falseValue don't work.
+      // trueValue, falseValue, caseSensitive, keepWhitespace don't work.
     }));
   return validValue;
 }
@@ -1008,7 +1008,7 @@ exports.questionPath = function(query, options) {
           }
           return true;
         },
-      // trueValue, falseValue don't work.
+      // trueValue, falseValue, caseSensitive don't work.
       phContent: function(param) {
           return param === 'error' ? error :
             param !== 'min' && param !== 'max' ? null :