diff --git a/Tests/LibGfx/TestICCProfile.cpp b/Tests/LibGfx/TestICCProfile.cpp
index 4db30ac133..816d3d8e40 100644
--- a/Tests/LibGfx/TestICCProfile.cpp
+++ b/Tests/LibGfx/TestICCProfile.cpp
@@ -5,6 +5,7 @@
  */
 
 #include <LibCore/MappedFile.h>
+#include <LibGfx/ICC/BinaryWriter.h>
 #include <LibGfx/ICC/Profile.h>
 #include <LibGfx/JPEGLoader.h>
 #include <LibGfx/PNGLoader.h>
@@ -39,3 +40,13 @@ TEST_CASE(jpg)
     auto icc_profile = MUST(Gfx::ICC::Profile::try_load_from_externally_owned_memory(icc_bytes.value()));
     EXPECT(icc_profile->is_v4());
 }
+
+TEST_CASE(serialize_icc)
+{
+    auto file = MUST(Core::MappedFile::map(TEST_INPUT("p3-v4.icc"sv)));
+    auto icc_profile = MUST(Gfx::ICC::Profile::try_load_from_externally_owned_memory(file->bytes()));
+    EXPECT(icc_profile->is_v4());
+
+    auto serialized_bytes = MUST(Gfx::ICC::encode(*icc_profile));
+    EXPECT_EQ(serialized_bytes, file->bytes());
+}
diff --git a/Tests/LibGfx/test-inputs/p3-v4.icc b/Tests/LibGfx/test-inputs/p3-v4.icc
new file mode 100644
index 0000000000..e310029c37
Binary files /dev/null and b/Tests/LibGfx/test-inputs/p3-v4.icc differ