diff --git a/hwdb.d/60-evdev.hwdb b/hwdb.d/60-evdev.hwdb
index b91fd8f294..42e30256e3 100644
--- a/hwdb.d/60-evdev.hwdb
+++ b/hwdb.d/60-evdev.hwdb
@@ -622,6 +622,13 @@ evdev:name:MSFT0001:02 04F3:304B Touchpad:dmi:*svnLENOVO:*pvrLenovoLegionY9000X2
  EVDEV_ABS_35=::31
  EVDEV_ABS_36=::30
 
+# Lenovo g580
+evdev:name:ETPS/2 Elantech Touchpad:dmi:*svnLENOVO:*pvrLenovoG580**
+ EVDEV_ABS_00=-170:2950:24
+ EVDEV_ABS_01=-591:700:25
+ EVDEV_ABS_35=-170:2950:24
+ EVDEV_ABS_36=-591:700:25
+
 #########################################
 # Microsoft
 #########################################
diff --git a/hwdb.d/parse_hwdb.py b/hwdb.d/parse_hwdb.py
index c0dde75650..5a1ae5a6a0 100755
--- a/hwdb.d/parse_hwdb.py
+++ b/hwdb.d/parse_hwdb.py
@@ -202,7 +202,7 @@ def property_grammar():
                 ]
     abs_props = [Regex(r'EVDEV_ABS_[0-9a-f]{2}')('NAME')
                  - Suppress('=') -
-                 Word(nums + ':')('VALUE')
+                 Word('-' + nums + ':')('VALUE')
                 ]
 
     grammar = Or(fixed_props + kbd_props + abs_props) + EOL