diff --git a/lib-ce/emqx_telemetry/.gitignore b/apps/emqx_telemetry/.gitignore
similarity index 100%
rename from lib-ce/emqx_telemetry/.gitignore
rename to apps/emqx_telemetry/.gitignore
diff --git a/lib-ce/emqx_telemetry/README.md b/apps/emqx_telemetry/README.md
similarity index 100%
rename from lib-ce/emqx_telemetry/README.md
rename to apps/emqx_telemetry/README.md
diff --git a/lib-ce/emqx_telemetry/etc/emqx_telemetry.conf b/apps/emqx_telemetry/etc/emqx_telemetry.conf
similarity index 100%
rename from lib-ce/emqx_telemetry/etc/emqx_telemetry.conf
rename to apps/emqx_telemetry/etc/emqx_telemetry.conf
diff --git a/lib-ce/emqx_telemetry/priv/emqx_telemetry.schema b/apps/emqx_telemetry/priv/emqx_telemetry.schema
similarity index 100%
rename from lib-ce/emqx_telemetry/priv/emqx_telemetry.schema
rename to apps/emqx_telemetry/priv/emqx_telemetry.schema
diff --git a/lib-ce/emqx_telemetry/rebar.config b/apps/emqx_telemetry/rebar.config
similarity index 100%
rename from lib-ce/emqx_telemetry/rebar.config
rename to apps/emqx_telemetry/rebar.config
diff --git a/lib-ce/emqx_telemetry/src/emqx_telemetry.app.src b/apps/emqx_telemetry/src/emqx_telemetry.app.src
similarity index 100%
rename from lib-ce/emqx_telemetry/src/emqx_telemetry.app.src
rename to apps/emqx_telemetry/src/emqx_telemetry.app.src
diff --git a/lib-ce/emqx_telemetry/src/emqx_telemetry.erl b/apps/emqx_telemetry/src/emqx_telemetry.erl
similarity index 100%
rename from lib-ce/emqx_telemetry/src/emqx_telemetry.erl
rename to apps/emqx_telemetry/src/emqx_telemetry.erl
diff --git a/lib-ce/emqx_telemetry/src/emqx_telemetry_api.erl b/apps/emqx_telemetry/src/emqx_telemetry_api.erl
similarity index 100%
rename from lib-ce/emqx_telemetry/src/emqx_telemetry_api.erl
rename to apps/emqx_telemetry/src/emqx_telemetry_api.erl
diff --git a/lib-ce/emqx_telemetry/src/emqx_telemetry_app.erl b/apps/emqx_telemetry/src/emqx_telemetry_app.erl
similarity index 100%
rename from lib-ce/emqx_telemetry/src/emqx_telemetry_app.erl
rename to apps/emqx_telemetry/src/emqx_telemetry_app.erl
diff --git a/lib-ce/emqx_telemetry/src/emqx_telemetry_sup.erl b/apps/emqx_telemetry/src/emqx_telemetry_sup.erl
similarity index 100%
rename from lib-ce/emqx_telemetry/src/emqx_telemetry_sup.erl
rename to apps/emqx_telemetry/src/emqx_telemetry_sup.erl
diff --git a/lib-ce/emqx_telemetry/test/emqx_telemetry_SUITE.erl b/apps/emqx_telemetry/test/emqx_telemetry_SUITE.erl
similarity index 100%
rename from lib-ce/emqx_telemetry/test/emqx_telemetry_SUITE.erl
rename to apps/emqx_telemetry/test/emqx_telemetry_SUITE.erl
diff --git a/sync-apps.sh b/sync-apps.sh
index 1e8da78cc..63145a987 100755
--- a/sync-apps.sh
+++ b/sync-apps.sh
@@ -25,7 +25,7 @@ apps=(
 "emqx_psk_file"
 "emqx_recon"
 "emqx_retainer"
-# "emqx_rule_engine" # moved to lib-ce
+"emqx_rule_engine"
 "emqx_sasl"
 "emqx_sn"
 "emqx_stomp"