diff --git a/src/libexpr/parser.y b/src/libexpr/parser.y
index 0d0004f9f..3336d3315 100644
--- a/src/libexpr/parser.y
+++ b/src/libexpr/parser.y
@@ -663,7 +663,7 @@ Expr * EvalState::parse(
     ParseData data {
         .state = *this,
         .symbols = symbols,
-        .basePath = std::move(basePath),
+        .basePath = basePath,
         .origin = {origin},
     };