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Diffstat (limited to 'third_party/nix/src/libexpr/common-eval-args.cc')
-rw-r--r--third_party/nix/src/libexpr/common-eval-args.cc2
1 files changed, 1 insertions, 1 deletions
diff --git a/third_party/nix/src/libexpr/common-eval-args.cc b/third_party/nix/src/libexpr/common-eval-args.cc
index fe8a6a02af08..b3e3782732c8 100644
--- a/third_party/nix/src/libexpr/common-eval-args.cc
+++ b/third_party/nix/src/libexpr/common-eval-args.cc
@@ -33,7 +33,7 @@ MixEvalArgs::MixEvalArgs() {
 }
 
 Bindings* MixEvalArgs::getAutoArgs(EvalState& state) {
-  Bindings* res = Bindings::NewGC();
+  Bindings* res = Bindings::NewGC(autoArgs.size());
   for (auto& i : autoArgs) {
     Value* v = state.allocValue();
     if (i.second[0] == 'E') {