diff --git a/jib-core/src/main/java/com/google/cloud/tools/jib/image/json/BuildableManifestTemplate.java b/jib-core/src/main/java/com/google/cloud/tools/jib/image/json/BuildableManifestTemplate.java
index c61ff881df..1be6029cf2 100644
--- a/jib-core/src/main/java/com/google/cloud/tools/jib/image/json/BuildableManifestTemplate.java
+++ b/jib-core/src/main/java/com/google/cloud/tools/jib/image/json/BuildableManifestTemplate.java
@@ -42,7 +42,6 @@ public interface BuildableManifestTemplate extends ManifestTemplate {
    */
   class ContentDescriptorTemplate implements JsonTemplate {
 
-    @SuppressWarnings("unused")
     @Nullable
     private String mediaType;
 
@@ -61,6 +60,11 @@ class ContentDescriptorTemplate implements JsonTemplate {
     @SuppressWarnings("unused")
     protected ContentDescriptorTemplate() {}
 
+    @Nullable
+    public String getMediaType() {
+      return mediaType;
+    }
+
     public long getSize() {
       return size;
     }
diff --git a/jib-core/src/test/java/com/google/cloud/tools/jib/image/json/OciManifestTemplateTest.java b/jib-core/src/test/java/com/google/cloud/tools/jib/image/json/OciManifestTemplateTest.java
index 6eaac9c4bf..e448aa9c04 100644
--- a/jib-core/src/test/java/com/google/cloud/tools/jib/image/json/OciManifestTemplateTest.java
+++ b/jib-core/src/test/java/com/google/cloud/tools/jib/image/json/OciManifestTemplateTest.java
@@ -71,11 +71,15 @@ public void testFromJson() throws IOException, URISyntaxException, DigestExcepti
 
     Assert.assertEquals(1000, manifestJson.getContainerConfiguration().getSize());
 
+    BuildableManifestTemplate.ContentDescriptorTemplate layer = manifestJson.getLayers().get(0);
+
     Assert.assertEquals(
         DescriptorDigest.fromHash(
             "4945ba5011739b0b98c4a41afe224e417f47c7c99b2ce76830999c9a0861b236"),
-        manifestJson.getLayers().get(0).getDigest());
+        layer.getDigest());
+
+    Assert.assertEquals(1000_000, layer.getSize());
 
-    Assert.assertEquals(1000_000, manifestJson.getLayers().get(0).getSize());
+    Assert.assertEquals("application/vnd.oci.image.manifest.v1+json", layer.getMediaType());
   }
 }
diff --git a/jib-core/src/test/java/com/google/cloud/tools/jib/image/json/V22ManifestTemplateTest.java b/jib-core/src/test/java/com/google/cloud/tools/jib/image/json/V22ManifestTemplateTest.java
index 91955bc901..439c432b43 100644
--- a/jib-core/src/test/java/com/google/cloud/tools/jib/image/json/V22ManifestTemplateTest.java
+++ b/jib-core/src/test/java/com/google/cloud/tools/jib/image/json/V22ManifestTemplateTest.java
@@ -75,12 +75,16 @@ public void testFromJson() throws IOException, URISyntaxException, DigestExcepti
 
     Assert.assertEquals(1000, manifestJson.getContainerConfiguration().getSize());
 
+    ContentDescriptorTemplate layer = manifestJson.getLayers().get(0);
+
     Assert.assertEquals(
         DescriptorDigest.fromHash(
             "4945ba5011739b0b98c4a41afe224e417f47c7c99b2ce76830999c9a0861b236"),
-        manifestJson.getLayers().get(0).getDigest());
+        layer.getDigest());
+
+    Assert.assertEquals(1000_000, layer.getSize());
 
-    Assert.assertEquals(1000_000, manifestJson.getLayers().get(0).getSize());
+    Assert.assertEquals("application/vnd.docker.image.rootfs.diff.tar.gzip", layer.getMediaType());
   }
 
   @Test
diff --git a/jib-core/src/test/resources/core/json/v22manifest_optional_properties.json b/jib-core/src/test/resources/core/json/v22manifest_optional_properties.json
index 19b2a0e914..93da5bcf81 100644
--- a/jib-core/src/test/resources/core/json/v22manifest_optional_properties.json
+++ b/jib-core/src/test/resources/core/json/v22manifest_optional_properties.json
@@ -30,6 +30,11 @@
       "size": 4,
       "urls": ["cool-url"],
       "annotations": {"key1":"value1", "key2":"value2"}
+    },
+    {
+      "mediaType": "application/vnd.docker.image.rootfs.diff.tar.gzip",
+      "digest": "sha256:aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
+      "size": 5
     }
   ]
 }
\ No newline at end of file