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-rw-r--r--third_party/nix/src/nix-env/nix-env.cc2
1 files changed, 1 insertions, 1 deletions
diff --git a/third_party/nix/src/nix-env/nix-env.cc b/third_party/nix/src/nix-env/nix-env.cc
index 830bd514dafb..ee36510f02a4 100644
--- a/third_party/nix/src/nix-env/nix-env.cc
+++ b/third_party/nix/src/nix-env/nix-env.cc
@@ -1516,7 +1516,7 @@ static int _main(int argc, char** argv) {
     globals.instSource.autoArgs = myArgs.getAutoArgs(*globals.state);
 
     if (globals.profile.empty()) {
-      globals.profile = getEnv("NIX_PROFILE", "");
+      globals.profile = getEnv("NIX_PROFILE").value_or("");
     }
 
     if (globals.profile.empty()) {