diff --git a/tests/psoc6/dut/i2c.py b/tests/psoc6/dut/i2c.py
index e9c1ce10db4f..ce4bc7eb30e5 100644
--- a/tests/psoc6/dut/i2c.py
+++ b/tests/psoc6/dut/i2c.py
@@ -218,3 +218,4 @@ def i2c_tests(i2c_master):
 
 # 7. Deinit runs without error
 i2c_master.deinit()
+i2c_slave.deinit()