diff --git a/Core/Inc/modelec.h b/Core/Inc/modelec.h
index aa55b78..6554fa3 100644
--- a/Core/Inc/modelec.h
+++ b/Core/Inc/modelec.h
@@ -18,7 +18,7 @@
 #define MAX_WAYPOINTS 16
 #define PWM_MAX 626.0f
 #define ENCODER_RES 2400.0f
-#define WHEEL_DIAMETER 0.081f
+#define WHEEL_DIAMETER 0.082f
 #define WHEEL_RADIUS (WHEEL_DIAMETER/2.0f)
 #define WHEEL_BASE 0.29f
 #define WHEEL_BASE_2 (WHEEL_BASE/2.0f)