diff --git a/const_fmt/format.h b/const_fmt/format.h
index 091864c..994d8e0 100644
--- a/const_fmt/format.h
+++ b/const_fmt/format.h
@@ -2,8 +2,6 @@
 #define LOGGER_FORMAT_H
 
 
-#include <cstring>
-
 #include "format_impl.h"
 #include "parse.h"
 #include "utility.h"
diff --git a/const_fmt/format_impl.h b/const_fmt/format_impl.h
index 26a6f1a..09c4e40 100644
--- a/const_fmt/format_impl.h
+++ b/const_fmt/format_impl.h
@@ -96,10 +96,6 @@ constexpr inline const char* digits2_base(size_t value) {
 
 
 constexpr inline void copy2(char* dst, const char* src) {
-    if (!std::is_constant_evaluated()) {
-        std::memcpy(dst, src, 2);
-        return;
-    }
     *dst++ = static_cast<char>(*src++);
     *dst   = static_cast<char>(*src);
 }