diff --git a/src/span.h b/src/span.h
index 0563556dc27..792a0a9c075 100644
--- a/src/span.h
+++ b/src/span.h
@@ -270,7 +270,7 @@ Span<std::byte> MakeWritableByteSpan(V&& v) noexcept
 inline unsigned char* UCharCast(char* c) { return (unsigned char*)c; }
 inline unsigned char* UCharCast(unsigned char* c) { return c; }
 inline unsigned char* UCharCast(std::byte* c) { return (unsigned char*)c; }
-inline const unsigned char* UCharCast(const char* c) { return (unsigned char*)c; }
+inline const unsigned char* UCharCast(const char* c) { return reinterpret_cast<const unsigned char*>(c); }
 inline const unsigned char* UCharCast(const unsigned char* c) { return c; }
 inline const unsigned char* UCharCast(const std::byte* c) { return reinterpret_cast<const unsigned char*>(c); }