diff --git a/Userland/Libraries/LibGfx/ImageFormats/ISOBMFF/Enums.h b/Userland/Libraries/LibGfx/ImageFormats/ISOBMFF/Enums.h
index 94ff3105c11..b6b92643c7b 100644
--- a/Userland/Libraries/LibGfx/ImageFormats/ISOBMFF/Enums.h
+++ b/Userland/Libraries/LibGfx/ImageFormats/ISOBMFF/Enums.h
@@ -12,13 +12,33 @@
 
 namespace Gfx::ISOBMFF {
 
-// Define all Box types:
-#define ENUMERATE_ALL()                 \
-    ENUMERATE_ONE(FreeBox, "free")      \
-    ENUMERATE_ONE(FileTypeBox, "ftyp")  \
-    ENUMERATE_ONE(MediaDataBox, "mdat") \
-    ENUMERATE_ONE(MetaBox, "meta")      \
-    ENUMERATE_ONE(MovieBox, "moov")
+// Define all Box types.
+// In FourCC-asciibetical order.
+// The JPEG2000 types are from T-REC-T.800-201511-S!!PDF-E.pdf, Table I.2 – Defined boxes
+#define ENUMERATE_ALL()                                        \
+    ENUMERATE_ONE(JPEG2000BitsPerComponentBox, "bpcc")         \
+    ENUMERATE_ONE(JPEG2000ChannelDefinitionBox, "cdef")        \
+    ENUMERATE_ONE(JPEG2000ComponentMappingBox, "cmap")         \
+    ENUMERATE_ONE(JPEG2000ColorSpecificationBox, "colr")       \
+    ENUMERATE_ONE(FreeBox, "free")                             \
+    ENUMERATE_ONE(FileTypeBox, "ftyp")                         \
+    ENUMERATE_ONE(JPEG2000ImageHeaderBox, "ihdr")              \
+    ENUMERATE_ONE(JPEG2000SignatureBox, "jP  ")                \
+    ENUMERATE_ONE(JPEG2000ContiguousCodestreamBox, "jp2c")     \
+    ENUMERATE_ONE(JPEG2000HeaderBox, "jp2h")                   \
+    ENUMERATE_ONE(JPEG2000IntellectualPropertyBox, "jp2i")     \
+    ENUMERATE_ONE(MediaDataBox, "mdat")                        \
+    ENUMERATE_ONE(MetaBox, "meta")                             \
+    ENUMERATE_ONE(MovieBox, "moov")                            \
+    ENUMERATE_ONE(JPEG2000PaletteBox, "pclr")                  \
+    ENUMERATE_ONE(JPEG2000ResolutionBox, "res ")               \
+    ENUMERATE_ONE(JPEG2000CaptureResolutionBox, "resc")        \
+    ENUMERATE_ONE(JPEG2000DefaultDisplayResolutionBox, "resd") \
+    ENUMERATE_ONE(JPEG2000UUIDInfoBox, "uinf")                 \
+    ENUMERATE_ONE(JPEG2000UUIDListBox, "ulst")                 \
+    ENUMERATE_ONE(JPEG2000URLBox, "url ")                      \
+    ENUMERATE_ONE(UserExtensionBox, "uuid")                    \
+    ENUMERATE_ONE(XMLBox, "xml ")
 
 enum class BoxType : u32 {
     None = 0,