refactor: make HashType and Base enum classes for type safety

Change-Id: I9fbd55a9d50464a56fe11cb42a06a206914150d8

1 files changed, 1 insertions, 1 deletions

diff --git a/src/libstore/builtins/fetchurl.cc b/src/libstore/builtins/fetchurl.cc
index 3a4cdd6e7..4049d1c6c 100644
--- a/src/libstore/builtins/fetchurl.cc
+++ b/src/libstore/builtins/fetchurl.cc
@@ -60,7 +60,7 @@ void builtinFetchurl(const BasicDerivation & drv, const std::string & netrcData)
                 if (!hashedMirror.ends_with("/")) hashedMirror += '/';
                 std::optional<HashType> ht = parseHashTypeOpt(getAttr("outputHashAlgo"));
                 Hash h = newHashAllowEmpty(getAttr("outputHash"), ht);
-                fetch(hashedMirror + printHashType(h.type) + "/" + h.to_string(Base16, false));
+                fetch(hashedMirror + printHashType(h.type) + "/" + h.to_string(Base::Base16, false));
                 return;
             } catch (Error & e) {
                 debug(e.what());