diff --git a/test/integration/subprocess/subprocess_main.cc b/test/integration/subprocess/subprocess_main.cc
index e903e3e..d3afa05 100644
--- a/test/integration/subprocess/subprocess_main.cc
+++ b/test/integration/subprocess/subprocess_main.cc
@@ -34,7 +34,6 @@ class OutputSink
     if (dest == "cout" || dest == "both")
     {
       std::cout << val << std::endl;
-
     }
     else if (dest == "cerr" || dest == "both")
     {
@@ -59,6 +58,10 @@ int main(int argc, char **argv)
   int iter_ms = 0;
   app.add_option("--iteration-ms", iter_ms, "length of one iteration");
 
+  bool environment = false;
+  app.add_flag("--environment", environment,
+               "print the environment variables");
+
   CLI11_PARSE(app, argc, argv);
 
   auto sink = OutputSink(output);
@@ -68,6 +71,9 @@ int main(int argc, char **argv)
     std::this_thread::sleep_for(std::chrono::milliseconds(iter_ms));
   }
 
-  sink.Write(gz::utils::printenv());
+  if (environment)
+  {
+    sink.Write(gz::utils::printenv());
+  }
   return 0;
 }
diff --git a/test/integration/subprocess_TEST.cc b/test/integration/subprocess_TEST.cc
index ef539d9..911ac60 100644
--- a/test/integration/subprocess_TEST.cc
+++ b/test/integration/subprocess_TEST.cc
@@ -124,7 +124,7 @@ TEST(Subprocess, Environment)
 
   {
     // Default behavior is to inherit the environment
-    auto proc = Subprocess({kExecutablePath, "--output=cout"});
+    auto proc = Subprocess({kExecutablePath, "--output=cout", "--environment"});
     // Block until the executable is done
     auto ret = proc.Join();
     EXPECT_EQ(0u, ret);
@@ -137,7 +137,8 @@ TEST(Subprocess, Environment)
 
   {
     // Passing an empty map as the second arg clears the environment
-    auto proc = Subprocess({kExecutablePath, "--output=cout"}, {});
+    auto proc = Subprocess(
+      {kExecutablePath, "--output=cout", "--environment"}, {});
     // Block until the executable is done
     auto ret = proc.Join();
     EXPECT_EQ(0u, ret);
@@ -150,7 +151,8 @@ TEST(Subprocess, Environment)
 
   {
     // Passing a map sets those variables, clearing the rest
-    auto proc = Subprocess({kExecutablePath, "--output=cout"}, {
+    auto proc = Subprocess(
+      {kExecutablePath, "--output=cout", "--environment"}, {
       {"QUX_KEY", "QUX_VAL"}
     });
     // Block until the executable is done