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-rw-r--r--quantum/mousekey.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/quantum/mousekey.c b/quantum/mousekey.c
index b91db80de6..703fb39fa6 100644
--- a/quantum/mousekey.c
+++ b/quantum/mousekey.c
@@ -129,7 +129,7 @@ static int8_t move_unit(uint8_t axis) {
// x**2 acceleration (quadratic, more precise for short movements)
int16_t percent = (inertia << 8) / mk_time_to_max;
- percent = (percent * percent) >> 8;
+ percent = ((int32_t)percent * percent) >> 8;
if (inertia < 0) percent = -percent;
// unit = sign(inertia) + (percent of max speed)