diff --git a/DirectXTex/DirectXTex.h b/DirectXTex/DirectXTex.h
index 58a3bdf..ca91912 100644
--- a/DirectXTex/DirectXTex.h
+++ b/DirectXTex/DirectXTex.h
@@ -389,6 +389,7 @@ namespace DirectX
         TEX_FILTER_POINT            = 0x100000,
         TEX_FILTER_LINEAR           = 0x200000,
         TEX_FILTER_CUBIC            = 0x300000,
+        TEX_FILTER_BOX              = 0x400000,
         TEX_FILTER_FANT             = 0x400000, // Equiv to Box filtering for mipmap generation
             // Filtering mode to use for any required image resizing
 
diff --git a/DirectXTex/DirectXTexMipmaps.cpp b/DirectXTex/DirectXTexMipmaps.cpp
index 9a7549a..19a7798 100644
--- a/DirectXTex/DirectXTexMipmaps.cpp
+++ b/DirectXTex/DirectXTexMipmaps.cpp
@@ -866,6 +866,8 @@ HRESULT GenerateMipMaps( const Image& baseImage, DWORD filter, size_t levels, Sc
     case TEX_FILTER_LINEAR:
     case TEX_FILTER_CUBIC:
         {
+            static_assert( TEX_FILTER_FANT == TEX_FILTER_BOX, "TEX_FILTER_ flags alias mismatch" );
+
             WICPixelFormatGUID pfGUID;
             if ( _DXGIToWIC( baseImage.format, pfGUID, true ) )
             {
@@ -931,6 +933,8 @@ HRESULT GenerateMipMaps( const Image* srcImages, size_t nimages, const TexMetada
     case TEX_FILTER_LINEAR:
     case TEX_FILTER_CUBIC:
         {
+            static_assert( TEX_FILTER_FANT == TEX_FILTER_BOX, "TEX_FILTER_ flags alias mismatch" );
+
             WICPixelFormatGUID pfGUID;
             if ( _DXGIToWIC( metadata.format, pfGUID, true ) )
             {
@@ -1051,7 +1055,7 @@ HRESULT GenerateMipMaps3D( const Image* baseImages, size_t depth, DWORD filter,
     switch( filter & TEX_FILTER_MASK )
     {
     case 0:
-    case TEX_FILTER_FANT:
+    case TEX_FILTER_BOX:
         hr = _Setup3DMips( baseImages, depth, levels, mipChain );
         if ( FAILED(hr) )
             return hr;
@@ -1129,7 +1133,7 @@ HRESULT GenerateMipMaps3D( const Image* srcImages, size_t nimages, const TexMeta
     switch( filter & TEX_FILTER_MASK )
     {
     case 0:
-    case TEX_FILTER_FANT:
+    case TEX_FILTER_BOX:
         hr = _Setup3DMips( &baseImages[0], metadata.depth, levels, mipChain );
         if ( FAILED(hr) )
             return hr;