diff --git a/tests/drivers/watchdog/wdt_basic_api/boards/nrf54h20dk_nrf54h20_cpuapp.conf b/tests/drivers/watchdog/wdt_basic_api/boards/nrf54h20dk_nrf54h20_cpuapp.conf
new file mode 100644
index 00000000000..45e31e2fae4
--- /dev/null
+++ b/tests/drivers/watchdog/wdt_basic_api/boards/nrf54h20dk_nrf54h20_cpuapp.conf
@@ -0,0 +1,2 @@
+# Disable dcache
+CONFIG_DCACHE=n