diff --git a/samples/bluetooth/hci_rpmsg/prj.conf b/samples/bluetooth/hci_rpmsg/prj.conf
index e0442620a6b..56a6df10281 100644
--- a/samples/bluetooth/hci_rpmsg/prj.conf
+++ b/samples/bluetooth/hci_rpmsg/prj.conf
@@ -1,5 +1,4 @@
 CONFIG_IPC_SERVICE=y
-CONFIG_IPC_SERVICE_BACKEND_RPMSG=y
 CONFIG_MBOX=y
 
 CONFIG_HEAP_MEM_POOL_SIZE=8192
diff --git a/samples/subsys/ipc/ipc_service/static_vrings/prj.conf b/samples/subsys/ipc/ipc_service/static_vrings/prj.conf
index 8e337824aa4..76296dd14c7 100644
--- a/samples/subsys/ipc/ipc_service/static_vrings/prj.conf
+++ b/samples/subsys/ipc/ipc_service/static_vrings/prj.conf
@@ -2,7 +2,6 @@ CONFIG_PRINTK=y
 CONFIG_HEAP_MEM_POOL_SIZE=4096
 
 CONFIG_IPC_SERVICE=y
-CONFIG_IPC_SERVICE_BACKEND_RPMSG=y
 CONFIG_MBOX=y
 
 CONFIG_OPENAMP=y
diff --git a/samples/subsys/ipc/ipc_service/static_vrings/remote/prj.conf b/samples/subsys/ipc/ipc_service/static_vrings/remote/prj.conf
index de83e561587..955bae0076a 100644
--- a/samples/subsys/ipc/ipc_service/static_vrings/remote/prj.conf
+++ b/samples/subsys/ipc/ipc_service/static_vrings/remote/prj.conf
@@ -2,7 +2,6 @@ CONFIG_PRINTK=y
 CONFIG_HEAP_MEM_POOL_SIZE=4096
 
 CONFIG_IPC_SERVICE=y
-CONFIG_IPC_SERVICE_BACKEND_RPMSG=y
 CONFIG_MBOX=y
 
 CONFIG_OPENAMP=y
diff --git a/tests/subsys/ipc/ipc_service/prj.conf b/tests/subsys/ipc/ipc_service/prj.conf
index 42c943e7f01..01e20c4e9b9 100644
--- a/tests/subsys/ipc/ipc_service/prj.conf
+++ b/tests/subsys/ipc/ipc_service/prj.conf
@@ -4,4 +4,3 @@
 CONFIG_ZTEST=y
 CONFIG_MMU=y
 CONFIG_IPC_SERVICE=y
-CONFIG_IPC_SERVICE_BACKEND_ZTEST=y