diff --git a/Userland/Libraries/LibCompress/Brotli.h b/Userland/Libraries/LibCompress/Brotli.h
index 2d75e7cfac..a9290bd42c 100644
--- a/Userland/Libraries/LibCompress/Brotli.h
+++ b/Userland/Libraries/LibCompress/Brotli.h
@@ -18,6 +18,9 @@ namespace Brotli {
 class CanonicalCode {
 public:
     CanonicalCode() = default;
+    CanonicalCode(Vector<size_t> codes, Vector<size_t> values)
+        : m_symbol_codes(move(codes))
+        , m_symbol_values(move(values)) {};
 
     static ErrorOr<CanonicalCode> read_prefix_code(LittleEndianInputBitStream&, size_t alphabet_size);
     static ErrorOr<CanonicalCode> read_simple_prefix_code(LittleEndianInputBitStream&, size_t alphabet_size);