diff --git a/libvo/osx_common.c b/libvo/osx_common.c
index 3ae8699103..b953860e36 100644
--- a/libvo/osx_common.c
+++ b/libvo/osx_common.c
@@ -24,6 +24,57 @@
 #include "osdep/keycodes.h"
 #include "input/input.h"
 
+/*
+ * Define keycodes only found in OSX >= 10.5 for older versions
+ */
+#if MAC_OS_X_VERSION_MAX_ALLOWED <= 1040
+#define kVK_ANSI_Keypad0 0x52
+#define kVK_ANSI_Keypad1 0x53
+#define kVK_ANSI_Keypad2 0x54
+#define kVK_ANSI_Keypad3 0x55
+#define kVK_ANSI_Keypad4 0x56
+#define kVK_ANSI_Keypad5 0x57
+#define kVK_ANSI_Keypad6 0x58
+#define kVK_ANSI_Keypad7 0x59
+#define kVK_ANSI_Keypad8 0x5b
+#define kVK_ANSI_Keypad9 0x5c
+#define kVK_ANSI_KeypadDecimal 0x41
+#define kVK_ANSI_KeypadDivide 0x4b
+#define kVK_ANSI_KeypadEnter 0x4c
+#define kVK_ANSI_KeypadMinus 0x4e
+#define kVK_ANSI_KeypadMultiply 0x43
+#define kVK_ANSI_KeypadPlus 0x45
+#define kVK_Control 0x3b
+#define kVK_Delete 0x33
+#define kVK_DownArrow 0x7d
+#define kVK_End 0x77
+#define kVK_Escape 0x35
+#define kVK_F1 0x7a
+#define kVK_F10 0x6d
+#define kVK_F11 0x67
+#define kVK_F12 0x6f
+#define kVK_F2 0x78
+#define kVK_F3 0x63
+#define kVK_F4 0x76
+#define kVK_F5 0x60
+#define kVK_F6 0x61
+#define kVK_F7 0x62
+#define kVK_F8 0x64
+#define kVK_F9 0x65
+#define kVK_ForwardDelete 0x75
+#define kVK_Help 0x72
+#define kVK_Home 0x73
+#define kVK_LeftArrow 0x7b
+#define kVK_Option 0x3a
+#define kVK_PageDown 0x79
+#define kVK_PageUp 0x74
+#define kVK_Return 0x24
+#define kVK_RightArrow 0x7c
+#define kVK_Shift 0x38
+#define kVK_Tab 0x30
+#define kVK_UpArrow 0x7e
+#endif /* MAC_OS_X_VERSION_MAX_ALLOWED <= 1040 */
+
 static const struct keymap keymap[] = {
     // special keys
     {0x34, KEY_ENTER}, // Enter key on some iBooks?