diff --git a/src/add-ons/media/media-add-ons/usb_webcam/CamInternalAddons.h b/src/add-ons/media/media-add-ons/usb_webcam/CamInternalAddons.h
new file mode 100644
index 0000000000..34c61730cf
--- /dev/null
+++ b/src/add-ons/media/media-add-ons/usb_webcam/CamInternalAddons.h
@@ -0,0 +1,2 @@
+B_WEBCAM_MKINTFUNC(quickcam)
+B_WEBCAM_MKINTFUNC(sonix)
diff --git a/src/add-ons/media/media-add-ons/usb_webcam/CamInternalColorSpaceTransforms.h b/src/add-ons/media/media-add-ons/usb_webcam/CamInternalColorSpaceTransforms.h
new file mode 100644
index 0000000000..20323138dd
--- /dev/null
+++ b/src/add-ons/media/media-add-ons/usb_webcam/CamInternalColorSpaceTransforms.h
@@ -0,0 +1 @@
+B_WEBCAM_DECLARE_CSTRANSFORM(BayerTransform, bayer)
diff --git a/src/add-ons/media/media-add-ons/usb_webcam/CamInternalSensors.h b/src/add-ons/media/media-add-ons/usb_webcam/CamInternalSensors.h
new file mode 100644
index 0000000000..22d326b9f8
--- /dev/null
+++ b/src/add-ons/media/media-add-ons/usb_webcam/CamInternalSensors.h
@@ -0,0 +1,3 @@
+B_WEBCAM_DECLARE_SENSOR(HDCS1000Sensor, hdcs1000)
+B_WEBCAM_DECLARE_SENSOR(HV7131E1Sensor, hv7131e1)
+B_WEBCAM_DECLARE_SENSOR(TAS5110C1BSensor, tas5110c1b)
diff --git a/src/add-ons/media/media-add-ons/usb_webcam/Jamfile b/src/add-ons/media/media-add-ons/usb_webcam/Jamfile
index 2c2d0a4686..eafa450056 100644
--- a/src/add-ons/media/media-add-ons/usb_webcam/Jamfile
+++ b/src/add-ons/media/media-add-ons/usb_webcam/Jamfile
@@ -2,6 +2,10 @@ SubDir HAIKU_TOP src add-ons media media-add-ons usb_webcam ;
 
 SetSubDirSupportedPlatformsBeOSCompatible ;
 
+# note: when adding new addons, sensors
+# or colorspace transforms, one should regenerate
+# the *Internal*.h headers with the makefile.
+
 # for USBKit.h
 UseLibraryHeaders usb ;
 
@@ -45,6 +49,7 @@ local sensorsSources ;
 sensorsSources = hdcs1000.cpp hv7131e1.cpp tas5110c1b.cpp ;
 
 ## how to build header files from sources to include the list of built-in addons.
+# but it doesn't seem to work for some reason...
 
 rule USBWebcamHeaderGen
 {