diff --git a/Userland/Libraries/LibGfx/ImageFormats/ISOBMFF/JPEG2000Boxes.cpp b/Userland/Libraries/LibGfx/ImageFormats/ISOBMFF/JPEG2000Boxes.cpp
index 9ff4269e726..a6ab46a1cf8 100644
--- a/Userland/Libraries/LibGfx/ImageFormats/ISOBMFF/JPEG2000Boxes.cpp
+++ b/Userland/Libraries/LibGfx/ImageFormats/ISOBMFF/JPEG2000Boxes.cpp
@@ -144,7 +144,7 @@ void JPEG2000ResolutionBox::dump(String const& prepend) const
     SuperBox::dump(prepend);
 }
 
-ErrorOr<void> JPEG2000CaptureResolutionBox::read_from_stream(BoxStream& stream)
+ErrorOr<void> JPEG2000ResolutionSubboxBase::read_from_stream(BoxStream& stream)
 {
     vertical_capture_grid_resolution_numerator = TRY(stream.read_value<BigEndian<u16>>());
     vertical_capture_grid_resolution_denominator = TRY(stream.read_value<BigEndian<u16>>());
@@ -155,13 +155,23 @@ ErrorOr<void> JPEG2000CaptureResolutionBox::read_from_stream(BoxStream& stream)
     return {};
 }
 
-void JPEG2000CaptureResolutionBox::dump(String const& prepend) const
+void JPEG2000ResolutionSubboxBase::dump(String const& prepend) const
 {
     Box::dump(prepend);
     outln("{}- vertical_capture_grid_resolution = {}/{} * 10^{}", prepend, vertical_capture_grid_resolution_numerator, vertical_capture_grid_resolution_denominator, vertical_capture_grid_resolution_exponent);
     outln("{}- horizontal_capture_grid_resolution = {}/{} * 10^{}", prepend, horizontal_capture_grid_resolution_numerator, horizontal_capture_grid_resolution_denominator, horizontal_capture_grid_resolution_exponent);
 }
 
+ErrorOr<void> JPEG2000CaptureResolutionBox::read_from_stream(BoxStream& stream)
+{
+    return JPEG2000ResolutionSubboxBase::read_from_stream(stream);
+}
+
+void JPEG2000CaptureResolutionBox::dump(String const& prepend) const
+{
+    JPEG2000ResolutionSubboxBase::dump(prepend);
+}
+
 ErrorOr<void> JPEG2000ContiguousCodestreamBox::read_from_stream(BoxStream& stream)
 {
     // FIXME: It's wasteful to make a copy of all the image data here. Having just a ReadonlyBytes
diff --git a/Userland/Libraries/LibGfx/ImageFormats/ISOBMFF/JPEG2000Boxes.h b/Userland/Libraries/LibGfx/ImageFormats/ISOBMFF/JPEG2000Boxes.h
index da2a09b2575..cb1a2c8e6bc 100644
--- a/Userland/Libraries/LibGfx/ImageFormats/ISOBMFF/JPEG2000Boxes.h
+++ b/Userland/Libraries/LibGfx/ImageFormats/ISOBMFF/JPEG2000Boxes.h
@@ -55,9 +55,9 @@ struct JPEG2000ResolutionBox final : public SuperBox {
     BOX_SUBTYPE(JPEG2000ResolutionBox);
 };
 
-// I.5.3.7.1 Capture Resolution box
-struct JPEG2000CaptureResolutionBox final : public Box {
-    BOX_SUBTYPE(JPEG2000CaptureResolutionBox);
+struct JPEG2000ResolutionSubboxBase : public Box {
+    ErrorOr<void> read_from_stream(BoxStream&);
+    virtual void dump(String const& prepend) const override;
 
     u16 vertical_capture_grid_resolution_numerator { 0 };
     u16 vertical_capture_grid_resolution_denominator { 0 };
@@ -67,6 +67,11 @@ struct JPEG2000CaptureResolutionBox final : public Box {
     i8 horizontal_capture_grid_resolution_exponent { 0 };
 };
 
+// I.5.3.7.1 Capture Resolution box
+struct JPEG2000CaptureResolutionBox final : public JPEG2000ResolutionSubboxBase {
+    BOX_SUBTYPE(JPEG2000CaptureResolutionBox);
+};
+
 // I.5.4 Contiguous Codestream box
 struct JPEG2000ContiguousCodestreamBox final : public Box {
     BOX_SUBTYPE(JPEG2000ContiguousCodestreamBox);