diff --git a/java_console/io/src/test/java/com/rusefi/io/serial/RateCounterTest.java b/java_console/io/src/test/java/com/rusefi/io/serial/RateCounterTest.java
index 81bc527888..25c6e40c42 100644
--- a/java_console/io/src/test/java/com/rusefi/io/serial/RateCounterTest.java
+++ b/java_console/io/src/test/java/com/rusefi/io/serial/RateCounterTest.java
@@ -20,7 +20,7 @@ public class RateCounterTest {
 
         // cute size effect: FUTURE timestamps are also counted :)
         assertEquals(4, rateCounter.getCurrentRate(0));
-        assertEquals(3, rateCounter.getSizeForUnitTest());
+        assertEquals(4, rateCounter.getSizeForUnitTest());
 
 
         assertEquals(0, rateCounter.getCurrentRate(2 * Timeouts.SECOND));