1 files changed, 2 insertions, 2 deletions
diff --git a/third_party/nix/src/nix/repl.cc b/third_party/nix/src/nix/repl.cc
index 2607655f9b..b926d195ae 100644
--- a/third_party/nix/src/nix/repl.cc
+++ b/third_party/nix/src/nix/repl.cc
@@ -394,10 +394,10 @@ static int runProgram(const std::string& program, const Strings& args) {
 
   Pid pid;
   pid = fork();
-  if (pid == -1) {
+  if (pid == Pid(-1)) {
     throw SysError("forking");
   }
-  if (pid == 0) {
+  if (pid == Pid(0)) {
     restoreAffinity();
     execvp(program.c_str(), stringsToCharPtrs(args2).data());
     _exit(1);