diff --git a/src/mac/carbon/spinbutt.cpp b/src/mac/carbon/spinbutt.cpp
index f744cb2b0a..a647fbef1f 100644
--- a/src/mac/carbon/spinbutt.cpp
+++ b/src/mac/carbon/spinbutt.cpp
@@ -83,7 +83,7 @@ int wxSpinButton::GetValue() const
 
 void wxSpinButton::SetValue(int val)
 {
-	MacHandleValueChanged( val - m_value ) ;
+	m_value = val ;
 }
 
 void wxSpinButton::SetRange(int minVal, int maxVal)
diff --git a/src/mac/spinbutt.cpp b/src/mac/spinbutt.cpp
index f744cb2b0a..a647fbef1f 100644
--- a/src/mac/spinbutt.cpp
+++ b/src/mac/spinbutt.cpp
@@ -83,7 +83,7 @@ int wxSpinButton::GetValue() const
 
 void wxSpinButton::SetValue(int val)
 {
-	MacHandleValueChanged( val - m_value ) ;
+	m_value = val ;
 }
 
 void wxSpinButton::SetRange(int minVal, int maxVal)