diff --git a/src/Package/Fetch.zig b/src/Package/Fetch.zig
index d9896c6bb2ad422269b3ed046639859a6749bb13..2943909fd75156a295342103ed576c1dedc11dc7 100644
--- a/src/Package/Fetch.zig
+++ b/src/Package/Fetch.zig
@@ -1187,7 +1187,7 @@ fn initResource(f: *Fetch, uri: std.Uri, resource: *Resource, reader_buffer: []u
     if (ascii.eqlIgnoreCase(uri.scheme, "file")) {
         const path = try uri.path.toRawMaybeAlloc(arena);
         const file = f.parent_package_root.openFile(io, path, .{}) catch |err| {
-            return f.fail(f.location_tok, try eb.printString("unable to open '{f}{s}': {t}", .{
+            return f.fail(f.location_tok, try eb.printString("unable to open {f}/{s}: {t}", .{
                 f.parent_package_root, path, err,
             }));
         };