diff --git a/src/common/pickerbase.cpp b/src/common/pickerbase.cpp
index 81b52204ce..3187ccdfe9 100644
--- a/src/common/pickerbase.cpp
+++ b/src/common/pickerbase.cpp
@@ -195,3 +195,8 @@ wxSize wxPickerBase::DoGetBestSize() const
 
     return ret;
 }
+
+void wxPickerBase::SetInternalMargin(int newmargin)
+{
+    m_margin = newmargin;
+}