diff --git a/samples/drivers/display/boards/ek_ra8d1.conf b/samples/drivers/display/boards/ek_ra8d1.conf
new file mode 100644
index 00000000000..0e0a8cb0f90
--- /dev/null
+++ b/samples/drivers/display/boards/ek_ra8d1.conf
@@ -0,0 +1,4 @@
+# Copyright (c) 2024 Renesas Electronics Corporation
+# SPDX-License-Identifier: Apache-2.0
+
+CONFIG_HEAP_MEM_POOL_SIZE=90440
diff --git a/samples/drivers/display/sample.yaml b/samples/drivers/display/sample.yaml
index 066138eb165..ffd4e0adf62 100644
--- a/samples/drivers/display/sample.yaml
+++ b/samples/drivers/display/sample.yaml
@@ -106,3 +106,4 @@ tests:
       - platform:mimxrt1040_evk/mimxrt1042:SHIELD=rk043fn66hs_ctg
       - platform:frdm_mcxn947/mcxn947/cpu0:SHIELD=lcd_par_s035_8080
       - platform:frdm_mcxn236/mcxn236:SHIELD=lcd_par_s035_8080
+      - platform:ek_ra8d1:SHIELD=rtkmipilcdb00000be