diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..378eac2
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+build
diff --git a/src/ev.py b/src/ev.py
index 7665814..c6053c0 100644
--- a/src/ev.py
+++ b/src/ev.py
@@ -550,6 +550,8 @@
 REL_DIAL = (0x02, 0x07)
 REL_WHEEL = (0x02, 0x08)
 REL_MISC = (0x02, 0x09)
+REL_WHEEL_HI_RES = (0x02, 0x0b)
+REL_HWHEEL_HI_RES = (0x02, 0x0c)
 REL_MAX = (0x02, 0x0f)
 ABS_X = (0x03, 0x00)
 ABS_Y = (0x03, 0x01)