diff --git a/src/Magnum/PixelFormat.cpp b/src/Magnum/PixelFormat.cpp
index b0b2fd4ec..ddc63cff3 100644
--- a/src/Magnum/PixelFormat.cpp
+++ b/src/Magnum/PixelFormat.cpp
@@ -159,7 +159,6 @@ constexpr UnsignedShort CompressedBlockData[] {
         ((depth - 1) << 4) | \
         ((size >> 3) - 1),
     #include "Magnum/Implementation/compressedPixelFormatMapping.hpp"
-    #undef _s
     #undef _c
 };
 #endif