diff --git a/pkg/emscripten/libretro/index.html b/pkg/emscripten/libretro/index.html
index d61c92bff6..eae5da79f1 100644
--- a/pkg/emscripten/libretro/index.html
+++ b/pkg/emscripten/libretro/index.html
@@ -28,15 +28,15 @@
                         <button class="btn btn-primary dropdown-toggle" type="button" id="dropdownMenu1" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">Core Selection</button>
                         <div class="dropdown-menu dropdown-primary" aria-labelledby="dropdownMenu1" data-dropdown-in="fadeIn" data-dropdown-out="fadeOut" id="core-selector">
                            <a class="dropdown-item" href="." data-core="2048">2048</a>
-			   <a class="dropdown-item" href="." data-core="arduous">Arduous</a>
-			   <a class="dropdown-item" href="." data-core="bk">BK</a>
+                           <a class="dropdown-item" href="." data-core="arduous">Arduous</a>
+                           <a class="dropdown-item" href="." data-core="bk">BK</a>
                            <a class="dropdown-item" href="." data-core="bluemsx">BlueMSX</a>
                            <a class="dropdown-item" href="." data-core="chailove">ChaiLove</a>
                            <a class="dropdown-item" href="." data-core="craft">Craft</a>
                            <a class="dropdown-item" href="." data-core="desmume">DeSmuME</a>
                            <a class="dropdown-item" href="." data-core="dosbox">DOSBox</a>
                            <a class="dropdown-item" href="." data-core="easyrpg">EasyRPG</a>
-			   <a class="dropdown-item" href="." data-core="ecwolf">ECWolf</a>
+                           <a class="dropdown-item" href="." data-core="ecwolf">ECWolf</a>
                            <a class="dropdown-item" href="." data-core="fbalpha2012">FB Alpha 2012</a>
                            <a class="dropdown-item" href="." data-core="fbalpha2012_cps1">FB Alpha 2012 CPS1</a>
                            <a class="dropdown-item" href="." data-core="fbalpha2012_cps2">FB Alpha 2012 CPS2</a>
@@ -46,11 +46,11 @@
                            <a class="dropdown-item" href="." data-core="freechaf">FreeChaF</a>
                            <a class="dropdown-item" href="." data-core="gambatte">Gambatte</a>
                            <a class="dropdown-item" href="." data-core="gme">Game Music Emu</a>
-			   <a class="dropdown-item" href="." data-core="gearboy">GearBoy</a>
-			   <a class="dropdown-item" href="." data-core="gearcoleco">GearColeco</a>
-			   <a class="dropdown-item" href="." data-core="gearsystem">GearSystem</a>
+                           <a class="dropdown-item" href="." data-core="gearboy">GearBoy</a>
+                           <a class="dropdown-item" href="." data-core="gearcoleco">GearColeco</a>
+                           <a class="dropdown-item" href="." data-core="gearsystem">GearSystem</a>
                            <a class="dropdown-item" href="." data-core="genesis_plus_gx">Genesis Plus GX</a>
-			   <a class="dropdown-item" href="." data-core="genesis_plus_gx_wide">Genesis Plus GX Wide</a>
+                           <a class="dropdown-item" href="." data-core="genesis_plus_gx_wide">Genesis Plus GX Wide</a>
                            <a class="dropdown-item" href="." data-core="glupen64">GLupeN64</a>
                            <!--<a class="dropdown-item" href="." data-core="gpsp">gPSP</a>-->
                            <a class="dropdown-item" href="." data-core="handy">Handy</a>
@@ -58,6 +58,7 @@
                            <a class="dropdown-item" href="." data-core="jumpnbump">Jump 'n Bump</a>
                            <a class="dropdown-item" href="." data-core="lowresnx">LowResNX</a>
                            <a class="dropdown-item" href="." data-core="lutro">Lutro</a>
+                           <a class="dropdown-item" href="." data-core="m2000">M2000</a>
                            <a class="dropdown-item" href="." data-core="mame2000">MAME 2000</a>
                            <a class="dropdown-item" href="." data-core="mame2003">MAME 2003</a>
                            <a class="dropdown-item" href="." data-core="mame2003_plus">MAME 2003-Plus</a>