diff --git a/keyboards/yowkees/lib/keyball/keyball.c b/keyboards/yowkees/lib/keyball/keyball.c
index c560cab6eaf..abac56b6772 100644
--- a/keyboards/yowkees/lib/keyball/keyball.c
+++ b/keyboards/yowkees/lib/keyball/keyball.c
@@ -25,7 +25,11 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #include <string.h>
 
 const uint8_t CPI_DEFAULT    = KEYBALL_CPI_DEFAULT / 100;
-const uint8_t CPI_MAX        = pmw3360_MAXCPI + 1;
+/**
+ * The Keyball library uses a range of 0 <= cpi <= 119 internally, and the true
+ * CPI value is ( cpi + 1 ) * 100.
+ */
+const uint8_t CPI_MAX        = KEYBALL_PMW3360_MAXCPI + 1; // 119 + 1 = 12000 CPI actual
 const uint8_t SCROLL_DIV_MAX = 7;
 
 const uint16_t AML_TIMEOUT_MIN = 100;
diff --git a/keyboards/yowkees/lib/keyball/keyball.h b/keyboards/yowkees/lib/keyball/keyball.h
index 32003a84632..cb54241f46c 100644
--- a/keyboards/yowkees/lib/keyball/keyball.h
+++ b/keyboards/yowkees/lib/keyball/keyball.h
@@ -49,6 +49,10 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #    define KEYBALL_SCROLLSNAP_TENSION_THRESHOLD 12
 #endif
 
+#ifndef KEYBALL_PMW3360_MAXCPI
+#    define KEYBALL_PMW3360_MAXCPI 119 // 12000 CPI actual
+#endif
+
 /// Specify SROM ID to be uploaded PMW3360DW (optical sensor).  It will be
 /// enabled high CPI setting or so.  Valid valus are 0x04 or 0x81.  Define this
 /// in your config.h to be enable.  Please note that using this option will