diff --git a/test/pthread/emscripten_thread_sleep.c b/test/pthread/emscripten_thread_sleep.c
deleted file mode 100644
index d0183fb121da1..0000000000000
--- a/test/pthread/emscripten_thread_sleep.c
+++ /dev/null
@@ -1,44 +0,0 @@
-#include <pthread.h>
-#include <emscripten.h>
-#include <emscripten/console.h>
-#include <emscripten/threading.h>
-#include <assert.h>
-#include <stdio.h>
-
-void Sleep(double msecs)
-{
-	double t1 = emscripten_get_now();
-	emscripten_thread_sleep(msecs);
-	double t2 = emscripten_get_now();
-	printf("emscripten_thread_sleep() slept for %f msecs.\n", t2 - t1);
-
-	assert(t2 - t1 >= 0.9 * msecs); // Should have slept ~ the requested time.
-}
-
-void *thread_main(void *arg)
-{
-	emscripten_out("hello from thread!");
-
-	Sleep(1);
-	Sleep(10);
-	Sleep(100);
-	Sleep(1000);
-	Sleep(5000);
-
-	emscripten_force_exit(0);
-	return NULL;
-}
-
-int main()
-{
-	// Bad bad bad to sleep on the main thread, but test that it works.
-	Sleep(1);
-	Sleep(10);
-	Sleep(100);
-	Sleep(1000);
-	Sleep(5000);
-	pthread_t thread;
-	pthread_create(&thread, NULL, thread_main, NULL);
-	emscripten_exit_with_live_runtime();
-	__builtin_trap();
-}
diff --git a/test/pthread/test_emscripten_thread_sleep.c b/test/pthread/test_emscripten_thread_sleep.c
new file mode 100644
index 0000000000000..268ec2ed272f9
--- /dev/null
+++ b/test/pthread/test_emscripten_thread_sleep.c
@@ -0,0 +1,41 @@
+#include <assert.h>
+#include <emscripten.h>
+#include <emscripten/console.h>
+#include <emscripten/threading.h>
+#include <pthread.h>
+#include <stdio.h>
+
+void do_sleep(double msecs) {
+  double t1 = emscripten_get_now();
+  emscripten_thread_sleep(msecs);
+  double t2 = emscripten_get_now();
+  emscripten_outf("emscripten_thread_sleep() slept for %f msecs.\n", t2 - t1);
+
+  assert(t2 - t1 >= 0.9 * msecs); // Should have slept ~ the requested time.
+}
+
+void* thread_main(void* arg) {
+  emscripten_out("hello from thread!");
+
+  do_sleep(1);
+  do_sleep(10);
+  do_sleep(100);
+  do_sleep(1000);
+  do_sleep(5000);
+
+  emscripten_force_exit(0);
+  return NULL;
+}
+
+int main() {
+  // Bad bad bad to sleep on the main thread, but test that it works.
+  do_sleep(1);
+  do_sleep(10);
+  do_sleep(100);
+  do_sleep(1000);
+  do_sleep(5000);
+  pthread_t thread;
+  pthread_create(&thread, NULL, thread_main, NULL);
+  emscripten_exit_with_live_runtime();
+  __builtin_trap();
+}
diff --git a/test/test_browser.py b/test/test_browser.py
index bf76a59441722..a28805e0bedd8 100644
--- a/test/test_browser.py
+++ b/test/test_browser.py
@@ -4815,7 +4815,7 @@ def test_unicode_html_shell(self):
 
   # Tests the functionality of the emscripten_thread_sleep() function.
   def test_emscripten_thread_sleep(self):
-    self.btest_exit('pthread/emscripten_thread_sleep.c', cflags=['-pthread'])
+    self.btest_exit('pthread/test_emscripten_thread_sleep.c', cflags=['-pthread'])
 
   # Tests that Emscripten-compiled applications can be run from a relative path in browser that is different than the address of the current page
   def test_browser_run_from_different_directory(self):