1 files changed, 1 insertions, 1 deletions
diff --git a/src/buildtool/build_engine/expression/evaluator.cpp b/src/buildtool/build_engine/expression/evaluator.cpp
index 76ad3076..ed6c6014 100644
--- a/src/buildtool/build_engine/expression/evaluator.cpp
+++ b/src/buildtool/build_engine/expression/evaluator.cpp
@@ -147,7 +147,7 @@ auto Enumerate(ExpressionPtr const& expr) -> ExpressionPtr {
     auto result = Expression::map_t::underlying_map_t{};
     size_t count = 0;
     for (auto const& entry : expr->List()) {
-        result[fmt::format("{}", count)] = entry;
+        result[fmt::format("{:010d}", count)] = entry;
         count++;
     }
     return ExpressionPtr{Expression::map_t{result}};