diff --git a/scripts/net/run-sample-tests.sh b/scripts/net/run-sample-tests.sh
index 11162b30b5..85f5d62efc 100755
--- a/scripts/net/run-sample-tests.sh
+++ b/scripts/net/run-sample-tests.sh
@@ -157,7 +157,7 @@ start_zephyr ()
     fi
 
     rm -rf build && mkdir build && \
-	cmake -GNinja -DBOARD=native_posix -B build "$@" . && \
+	cmake -GNinja -DBOARD=native_sim -B build "$@" . && \
 	ninja -C build
 
     # Run the binary directly so that ninja does not print errors that
diff --git a/tests/net/lib/lwm2m/interop/docker-test.sh b/tests/net/lib/lwm2m/interop/docker-test.sh
index 9184461aec..4efeec9625 100644
--- a/tests/net/lib/lwm2m/interop/docker-test.sh
+++ b/tests/net/lib/lwm2m/interop/docker-test.sh
@@ -13,7 +13,7 @@ FWD="-p 8080:8080 -p 8081:8081 -p 5683:5683/udp"
 start_configuration "$IP $FWD" || return $?
 start_docker "/net-tools/start-leshan.sh" || return $?
 
-twister -p native_posix -T ./ --enable-slow -vv
+twister -p native_sim -T ./ --enable-slow -vv
 
 result=$?