diff --git a/src/mac/button.cpp b/src/mac/button.cpp
index 82e4e34c5f..cc3685a17d 100644
--- a/src/mac/button.cpp
+++ b/src/mac/button.cpp
@@ -87,7 +87,7 @@ wxSize wxButton::DoGetBestSize() const
 {
   wxSize sz = GetDefaultSize() ;
   
-  int wBtn = m_label.Length() * 8 + 12 + 2 * kMacOSXHorizontalBorder ;
+  int wBtn = m_label.Length() * 10 + 12 + 2 * kMacOSXHorizontalBorder ;
     
   if (wBtn > sz.x) sz.x = wBtn;
   
diff --git a/src/mac/carbon/button.cpp b/src/mac/carbon/button.cpp
index 82e4e34c5f..cc3685a17d 100644
--- a/src/mac/carbon/button.cpp
+++ b/src/mac/carbon/button.cpp
@@ -87,7 +87,7 @@ wxSize wxButton::DoGetBestSize() const
 {
   wxSize sz = GetDefaultSize() ;
   
-  int wBtn = m_label.Length() * 8 + 12 + 2 * kMacOSXHorizontalBorder ;
+  int wBtn = m_label.Length() * 10 + 12 + 2 * kMacOSXHorizontalBorder ;
     
   if (wBtn > sz.x) sz.x = wBtn;
   
diff --git a/src/mac/carbon/control.cpp b/src/mac/carbon/control.cpp
index 49be26a16c..ae57f23ab0 100644
--- a/src/mac/carbon/control.cpp
+++ b/src/mac/carbon/control.cpp
@@ -433,7 +433,7 @@ void wxControl::MacAdjustControlRect()
         {
             if ( IsKindOf( CLASSINFO( wxButton ) ) )
             {
-                m_width = m_label.Length() * 8 + 12 ;
+                m_width = m_label.Length() * 10 + 12 ;
                 if ( m_width < 70 )
                   m_width = 70 ;
             }
diff --git a/src/mac/control.cpp b/src/mac/control.cpp
index 49be26a16c..ae57f23ab0 100644
--- a/src/mac/control.cpp
+++ b/src/mac/control.cpp
@@ -433,7 +433,7 @@ void wxControl::MacAdjustControlRect()
         {
             if ( IsKindOf( CLASSINFO( wxButton ) ) )
             {
-                m_width = m_label.Length() * 8 + 12 ;
+                m_width = m_label.Length() * 10 + 12 ;
                 if ( m_width < 70 )
                   m_width = 70 ;
             }