diff --git a/lib/std/build.zig b/lib/std/build.zig
index e9c0629f3..90ab53b46 100644
--- a/lib/std/build.zig
+++ b/lib/std/build.zig
@@ -1843,7 +1843,7 @@ pub const LibExeObjStep = struct {
     }
 
     pub fn addPackage(self: *LibExeObjStep, package: Pkg) void {
-        self.packages.append(self.dupePkg(package)) catch unreachable;
+        self.packages.append(self.builder.dupePkg(package)) catch unreachable;
     }
 
     pub fn addPackagePath(self: *LibExeObjStep, name: []const u8, pkg_index_path: []const u8) void {