diff --git a/pgpainless-core/src/test/java/org/pgpainless/util/ArmorUtilsTest.java b/pgpainless-core/src/test/java/org/pgpainless/util/ArmorUtilsTest.java
index c320c649..5eb32179 100644
--- a/pgpainless-core/src/test/java/org/pgpainless/util/ArmorUtilsTest.java
+++ b/pgpainless-core/src/test/java/org/pgpainless/util/ArmorUtilsTest.java
@@ -128,6 +128,14 @@ public class ArmorUtilsTest {
         assertTrue(ascii.startsWith("-----BEGIN PGP PRIVATE KEY BLOCK-----\n"));
     }
 
+    @Test
+    public void testAsciiArmorToStream() throws IOException, PGPException {
+        PGPSecretKeyRing secretKeys = TestKeys.getEmilSecretKeyRing();
+        ByteArrayOutputStream bytes = new ByteArrayOutputStream();
+        PGPainless.asciiArmor(secretKeys, bytes);
+        assertTrue(bytes.toString().startsWith("-----BEGIN PGP PRIVATE KEY BLOCK-----\n"));
+    }
+
     @Test
     public void testSetCustomVersionHeader() throws IOException {
         ArmoredOutputStreamFactory.setVersionInfo("MyVeryFirstOpenPGPProgram 1.0");