diff --git a/Source/Core/Common/Common.vcxproj b/Source/Core/Common/Common.vcxproj
index 15418f6b29..8a40dc7c58 100644
--- a/Source/Core/Common/Common.vcxproj
+++ b/Source/Core/Common/Common.vcxproj
@@ -93,6 +93,7 @@
     <ClInclude Include="GL\GLExtensions\ARB_uniform_buffer_object.h" />
     <ClInclude Include="GL\GLExtensions\ARB_vertex_array_object.h" />
     <ClInclude Include="GL\GLExtensions\ARB_viewport_array.h" />
+    <ClInclude Include="GL\GLExtensions\EXT_texture_compression_s3tc.h" />
     <ClInclude Include="GL\GLExtensions\EXT_texture_filter_anisotropic.h" />
     <ClInclude Include="GL\GLExtensions\GLExtensions.h" />
     <ClInclude Include="GL\GLExtensions\gl_1_1.h" />
@@ -225,4 +226,4 @@
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
   <ImportGroup Label="ExtensionTargets">
   </ImportGroup>
-</Project>
+</Project>
\ No newline at end of file
diff --git a/Source/Core/Common/Common.vcxproj.filters b/Source/Core/Common/Common.vcxproj.filters
index 4cd0ac4af8..ee4f949251 100644
--- a/Source/Core/Common/Common.vcxproj.filters
+++ b/Source/Core/Common/Common.vcxproj.filters
@@ -248,6 +248,9 @@
     <ClInclude Include="GL\GLExtensions\ARB_compute_shader.h">
       <Filter>GL\GLExtensions</Filter>
     </ClInclude>
+    <ClInclude Include="GL\GLExtensions\EXT_texture_compression_s3tc.h">
+      <Filter>GL\GLExtensions</Filter>
+    </ClInclude>
   </ItemGroup>
   <ItemGroup>
     <ClCompile Include="CDUtils.cpp" />
@@ -321,4 +324,4 @@
   <ItemGroup>
     <Natvis Include="BitField.natvis" />
   </ItemGroup>
-</Project>
+</Project>
\ No newline at end of file
diff --git a/Source/Core/Common/GL/GLExtensions/EXT_texture_compression_s3tc.h b/Source/Core/Common/GL/GLExtensions/EXT_texture_compression_s3tc.h
new file mode 100644
index 0000000000..5eb17791c6
--- /dev/null
+++ b/Source/Core/Common/GL/GLExtensions/EXT_texture_compression_s3tc.h
@@ -0,0 +1,29 @@
+/*
+** Copyright (c) 2013-2015 The Khronos Group Inc.
+**
+** Permission is hereby granted, free of charge, to any person obtaining a
+** copy of this software and/or associated documentation files (the
+** "Materials"), to deal in the Materials without restriction, including
+** without limitation the rights to use, copy, modify, merge, publish,
+** distribute, sublicense, and/or sell copies of the Materials, and to
+** permit persons to whom the Materials are furnished to do so, subject to
+** the following conditions:
+**
+** The above copyright notice and this permission notice shall be included
+** in all copies or substantial portions of the Materials.
+**
+** THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+** EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+** MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+** IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+** CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+** TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+** MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS.
+*/
+
+#include "Common/GL/GLExtensions/gl_common.h"
+
+#define GL_COMPRESSED_RGB_S3TC_DXT1_EXT 0x83F0
+#define GL_COMPRESSED_RGBA_S3TC_DXT1_EXT 0x83F1
+#define GL_COMPRESSED_RGBA_S3TC_DXT3_EXT 0x83F2
+#define GL_COMPRESSED_RGBA_S3TC_DXT5_EXT 0x83F3
diff --git a/Source/Core/Common/GL/GLExtensions/GLExtensions.h b/Source/Core/Common/GL/GLExtensions/GLExtensions.h
index 49e9fc282f..7745d78e60 100644
--- a/Source/Core/Common/GL/GLExtensions/GLExtensions.h
+++ b/Source/Core/Common/GL/GLExtensions/GLExtensions.h
@@ -31,6 +31,7 @@
 #include "Common/GL/GLExtensions/ARB_uniform_buffer_object.h"
 #include "Common/GL/GLExtensions/ARB_vertex_array_object.h"
 #include "Common/GL/GLExtensions/ARB_viewport_array.h"
+#include "Common/GL/GLExtensions/EXT_texture_compression_s3tc.h"
 #include "Common/GL/GLExtensions/EXT_texture_filter_anisotropic.h"
 #include "Common/GL/GLExtensions/HP_occlusion_test.h"
 #include "Common/GL/GLExtensions/KHR_debug.h"