diff --git a/src/buttons.c b/src/buttons.c
index 801dad1f..3227f672 100644
--- a/src/buttons.c
+++ b/src/buttons.c
@@ -764,10 +764,8 @@ const T_Lookup Lookup_MouseSpeed[] = {
 
 const T_Lookup Lookup_SwapButtons[] = {
   {"None",0},
-  {"Shift",MOD_SHIFT},
   {"Control",MOD_CTRL},
   {"Alt",MOD_ALT},
-  {"Meta",MOD_META},
   {NULL,-1},
 };
 
diff --git a/src/readini.c b/src/readini.c
index c280574d..7c520806 100644
--- a/src/readini.c
+++ b/src/readini.c
@@ -923,17 +923,11 @@ int Load_INI(T_Config * conf)
     switch(values[0])
     {
       case 1:
-        conf->Swap_buttons=MOD_SHIFT;
-        break;
-      case 2:
         conf->Swap_buttons=MOD_CTRL;
         break;
-      case 3:
+      case 2:
         conf->Swap_buttons=MOD_ALT;
         break;
-      case 4:
-        conf->Swap_buttons=MOD_META;
-        break;
     }
   }
   
diff --git a/src/saveini.c b/src/saveini.c
index 1d1ae41d..2f81e905 100644
--- a/src/saveini.c
+++ b/src/saveini.c
@@ -683,17 +683,11 @@ int Save_INI(T_Config * conf)
     
   switch(conf->Swap_buttons)
   {
-      case MOD_SHIFT:
+      case MOD_CTRL:
         values[0]=1;
         break;
-      case MOD_CTRL:
-        values[0]=2;
-        break;
       case MOD_ALT:
-        values[0]=3;
-        break;
-      case MOD_META:
-        values[0]=4;
+        values[0]=2;
         break;
       default:
         values[0]=0;
diff --git a/src/struct.h b/src/struct.h
index b8221f7e..a98c29ab 100644
--- a/src/struct.h
+++ b/src/struct.h
@@ -358,7 +358,7 @@ typedef struct
   byte Right_click_colorpick;            ///< Boolean, true to enable a "tablet" mode, where RMB acts as instant colorpicker
   byte Sync_views;                       ///< Boolean, true when the Main and Spare should share their viewport settings.
   byte Stylus_mode;                      ///< Boolean, true to tweak some tools (eg:Curve) for single-button stylus.
-  word Swap_buttons;                     ///< Sets which key swaps mouse buttons : 0=none, or MOD_SHIFT, MOD_CTRL, MOD_ALT, MOD_META.
+  word Swap_buttons;                     ///< Sets which key swaps mouse buttons : 0=none, or MOD_CTRL, or MOD_ALT.
 } T_Config;
 
 // Structures utilisées pour les descriptions de pages et de liste de pages.