diff --git a/src/libexpr/eval.cc b/src/libexpr/eval.cc
index 91fd3ddf8..9fee05290 100644
--- a/src/libexpr/eval.cc
+++ b/src/libexpr/eval.cc
@@ -1384,7 +1384,7 @@ void ExprSelect::eval(EvalState & state, Env & env, Value & v)
                 state,
                 *this,
                 env,
-                state.positions[pos2],
+                state.positions[getPos()],
                 "while evaluating the attribute '%1%'",
                 showAttrPath(state, env, attrPath))
             : nullptr;