diff --git a/include/android/input.h b/include/android/input.h
index 7b7653933..5ab4e2926 100644
--- a/include/android/input.h
+++ b/include/android/input.h
@@ -807,6 +807,8 @@ enum {
     AINPUT_SOURCE_MOUSE = 0x00002000 | AINPUT_SOURCE_CLASS_POINTER,
     /** stylus */
     AINPUT_SOURCE_STYLUS = 0x00004000 | AINPUT_SOURCE_CLASS_POINTER,
+    /** bluetooth stylus */
+    AINPUT_SOURCE_BLUETOOTH_STYLUS = 0x00008000 | AINPUT_SOURCE_STYLUS,
     /** trackball */
     AINPUT_SOURCE_TRACKBALL = 0x00010000 | AINPUT_SOURCE_CLASS_NAVIGATION,
     /** touchpad */
diff --git a/services/inputflinger/InputReader.cpp b/services/inputflinger/InputReader.cpp
index dc8d093da..8a22e3d1a 100644
--- a/services/inputflinger/InputReader.cpp
+++ b/services/inputflinger/InputReader.cpp
@@ -3104,9 +3104,12 @@ void TouchInputMapper::configureSurface(nsecs_t when, bool* outResetNeeded) {
             && mParameters.hasAssociatedDisplay) {
         mSource = AINPUT_SOURCE_TOUCHSCREEN;
         mDeviceMode = DEVICE_MODE_DIRECT;
-        if (hasStylus() || hasExternalStylus()) {
+        if (hasStylus()) {
             mSource |= AINPUT_SOURCE_STYLUS;
         }
+        if (hasExternalStylus()) {
+            mSource |= AINPUT_SOURCE_BLUETOOTH_STYLUS;
+        }
     } else if (mParameters.deviceType == Parameters::DEVICE_TYPE_TOUCH_NAVIGATION) {
         mSource = AINPUT_SOURCE_TOUCH_NAVIGATION;
         mDeviceMode = DEVICE_MODE_NAVIGATION;