diff --git a/src/evdev-tablet.c b/src/evdev-tablet.c
index 6f18f9a0..4f1bc768 100644
--- a/src/evdev-tablet.c
+++ b/src/evdev-tablet.c
@@ -105,7 +105,7 @@ tablet_update_tool(struct tablet_dispatch *tablet,
 
 static inline double
 normalize_pressure_or_dist(const struct input_absinfo * absinfo) {
-	double range = absinfo->maximum - absinfo->minimum + 1;
+	double range = absinfo->maximum - absinfo->minimum;
 	double value = (absinfo->value - absinfo->minimum) / range;
 
 	return value;
@@ -113,7 +113,7 @@ normalize_pressure_or_dist(const struct input_absinfo * absinfo) {
 
 static inline double
 normalize_tilt(const struct input_absinfo * absinfo) {
-	double range = absinfo->maximum - absinfo->minimum + 1;
+	double range = absinfo->maximum - absinfo->minimum;
 	double value = (absinfo->value - absinfo->minimum) / range;
 
 	/* Map to the (-1, 1) range */
diff --git a/test/tablet.c b/test/tablet.c
index 6d98bebd..367c4db4 100644
--- a/test/tablet.c
+++ b/test/tablet.c
@@ -438,13 +438,13 @@ START_TEST(normalization)
 		litest_event(dev,
 			     EV_ABS,
 			     ABS_TILT_X,
-			     tilt_vertical_absinfo->maximum + 1);
+			     tilt_vertical_absinfo->maximum);
 
 	if (tilt_horizontal_absinfo != NULL)
 		litest_event(dev,
 			     EV_ABS,
 			     ABS_TILT_Y,
-			     tilt_horizontal_absinfo->maximum + 1);
+			     tilt_horizontal_absinfo->maximum);
 
 	litest_event(dev, EV_SYN, SYN_REPORT, 0);