diff --git a/Contrib/nsDialogs/Readme.html b/Contrib/nsDialogs/Readme.html
index 3a6216d4..fd9c8975 100644
--- a/Contrib/nsDialogs/Readme.html
+++ b/Contrib/nsDialogs/Readme.html
@@ -238,7 +238,7 @@ Link,
 Button, 
 GroupBox, 
 CheckBox, 
-RadioButton, 
+RadioButton (FirstRadioButton and AdditionalRadioButton), 
 Text, 
 MLText, 
 Password, 
@@ -549,7 +549,7 @@ StrCmp $0 "" ...
 <li>${NSD_CreateButton}</li>
 <li>${NSD_CreateGroupBox}</li>
 <li>${NSD_CreateCheckBox}</li>
-<li>${NSD_CreateRadioButton}</li>
+<li>${NSD_CreateRadioButton} <small>(${NSD_CreateFirstRadioButton} and ${NSD_CreateAdditionalRadioButton})</small></li>
 <li>${NSD_CreateText}</li>
 <li>${NSD_CreateMLText}</li>
 <li>${NSD_CreatePassword}</li>
diff --git a/Contrib/nsDialogs/nsDialogs.nsh b/Contrib/nsDialogs/nsDialogs.nsh
index 17e8efa9..b8f2020c 100644
--- a/Contrib/nsDialogs/nsDialogs.nsh
+++ b/Contrib/nsDialogs/nsDialogs.nsh
@@ -291,6 +291,14 @@ Header file for creating custom installer pages with nsDialogs
 !define __NSD_RadioButton_STYLE ${DEFAULT_STYLES}|${WS_TABSTOP}|${BS_TEXT}|${BS_VCENTER}|${BS_AUTORADIOBUTTON}|${BS_MULTILINE}
 !define __NSD_RadioButton_EXSTYLE 0
 
+!define __NSD_FirstRadioButton_CLASS ${__NSD_RadioButton_CLASS}
+!define __NSD_FirstRadioButton_STYLE ${DEFAULT_STYLES}|${WS_TABSTOP}|${WS_GROUP}|${BS_TEXT}|${BS_VCENTER}|${BS_AUTORADIOBUTTON}|${BS_MULTILINE}
+!define __NSD_FirstRadioButton_EXSTYLE ${__NSD_RadioButton_EXSTYLE}
+
+!define __NSD_AdditionalRadioButton_CLASS ${__NSD_RadioButton_CLASS}
+!define __NSD_AdditionalRadioButton_STYLE ${DEFAULT_STYLES}|${BS_TEXT}|${BS_VCENTER}|${BS_AUTORADIOBUTTON}|${BS_MULTILINE}
+!define __NSD_AdditionalRadioButton_EXSTYLE ${__NSD_RadioButton_EXSTYLE}
+
 !define __NSD_Text_CLASS EDIT
 !define __NSD_Text_STYLE ${DEFAULT_STYLES}|${WS_TABSTOP}|${ES_AUTOHSCROLL}
 !define __NSD_Text_EXSTYLE ${WS_EX_WINDOWEDGE}|${WS_EX_CLIENTEDGE}
@@ -406,6 +414,8 @@ Header file for creating custom installer pages with nsDialogs
 !insertmacro __NSD_DefineControl GroupBox
 !insertmacro __NSD_DefineControl CheckBox
 !insertmacro __NSD_DefineControl RadioButton
+!insertmacro __NSD_DefineControl FirstRadioButton
+!insertmacro __NSD_DefineControl AdditionalRadioButton
 !insertmacro __NSD_DefineControl Text
 !insertmacro __NSD_DefineControl MLText
 !insertmacro __NSD_DefineControl Password