diff --git a/fuzztest/internal/subprocess.cc b/fuzztest/internal/subprocess.cc
index dd287055..d29d125c 100644
--- a/fuzztest/internal/subprocess.cc
+++ b/fuzztest/internal/subprocess.cc
@@ -40,6 +40,8 @@
 
 namespace fuzztest::internal {
 
+#if !defined(_MSC_VER)
+
 TerminationStatus::TerminationStatus(int status) : status_(status) {}
 
 bool TerminationStatus::Exited() const { return WIFEXITED(status_); }
@@ -52,8 +54,6 @@ std::variant<ExitCodeT, SignalT> TerminationStatus::Status() const {
   return static_cast<SignalT>(WTERMSIG(status_));
 }
 
-#if !defined(_MSC_VER)
-
 // Helper class for running commands in a subprocess.
 class SubProcess {
  public: