diff --git a/robolectric/src/test/java/org/robolectric/shadows/ShadowParcelFileDescriptorTest.java b/robolectric/src/test/java/org/robolectric/shadows/ShadowParcelFileDescriptorTest.java
index 3a1f65d0f3c..b68c5744edd 100644
--- a/robolectric/src/test/java/org/robolectric/shadows/ShadowParcelFileDescriptorTest.java
+++ b/robolectric/src/test/java/org/robolectric/shadows/ShadowParcelFileDescriptorTest.java
@@ -2,20 +2,20 @@
 
 import static com.google.common.truth.Truth.assertThat;
 import static org.junit.Assert.assertThrows;
-import static org.junit.Assume.assumeThat;
 
 import android.os.ParcelFileDescriptor;
 import androidx.test.core.app.ApplicationProvider;
 import androidx.test.ext.junit.runners.AndroidJUnit4;
 import java.io.File;
+import java.io.FileDescriptor;
 import java.io.FileInputStream;
 import java.io.FileOutputStream;
 import java.io.IOException;
-import org.hamcrest.Matchers;
 import org.junit.After;
 import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;
+import org.robolectric.util.ReflectionHelpers;
 
 @RunWith(AndroidJUnit4.class)
 public class ShadowParcelFileDescriptorTest {
@@ -255,13 +255,15 @@ public void testCreatePipeTwice() throws IOException {
 
   @Test
   public void testGetFd_canRead() throws IOException {
-    assumeThat("Windows is an affront to decency.",
-        File.separator, Matchers.equalTo("/"));
-
     pfd = ParcelFileDescriptor.open(readOnlyFile, ParcelFileDescriptor.MODE_READ_ONLY);
     int fd = pfd.getFd();
     assertThat(fd).isGreaterThan(0);
-    FileInputStream is = new FileInputStream(new File("/proc/self/fd/" + fd));
+
+    final FileDescriptor fileDescriptor = pfd.getFileDescriptor();
+    assertThat(fileDescriptor.valid()).isTrue();
+    assertThat(fd).isEqualTo(ReflectionHelpers.getField(fileDescriptor, "fd"));
+
+    FileInputStream is = new FileInputStream(fileDescriptor);
     assertThat(is.read()).isEqualTo(READ_ONLY_FILE_CONTENTS);
     is.close();
   }