diff --git a/CMakeLists.txt b/CMakeLists.txt
index b802dd87b7..fe98f1c649 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -226,7 +226,7 @@ endif()
 
 if(NOT EXISTS "${NUTTX_BOARD_DIR}/CMakeLists.txt"
    AND NOT EXISTS "${NUTTX_BOARD_DIR}/../common/CMakeLists.txt")
-  message(FATAL_ERROR "No CMakeList.txt found at ${NUTTX_BOARD_DIR}")
+  message(FATAL_ERROR "No CMakeLists.txt found at ${NUTTX_BOARD_DIR}")
 endif()
 
 # Custom board ###################################################
diff --git a/boards/arm/nrf52/thingy52/src/CMakeList.txt b/boards/arm/nrf52/thingy52/src/CMakeList.txt
deleted file mode 100644
index 48129728d2..0000000000
--- a/boards/arm/nrf52/thingy52/src/CMakeList.txt
+++ /dev/null
@@ -1,35 +0,0 @@
-############################################################################
-# boards/arm/nrf52/thingy52/src/CMakeLists.txt
-#
-# Licensed to the Apache Software Foundation (ASF) under one or more
-# contributor license agreements.  See the NOTICE file distributed with
-# this work for additional information regarding copyright ownership.  The
-# ASF licenses this file to you under the Apache License, Version 2.0 (the
-# "License"); you may not use this file except in compliance with the
-# License.  You may obtain a copy of the License at
-#
-#   http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
-# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
-# License for the specific language governing permissions and limitations
-# under the License.
-#
-############################################################################
-
-set(SRCS nrf52_boot.c nrf52_bringup.c)
-
-if(CONFIG_BOARDCTL)
-  list(APPEND SRCS nrf52_appinit.c)
-endif()
-
-if(CONFIG_ARCH_BUTTONS)
-  list(APPEND SRCS nrf52_buttons.c)
-endif()
-
-if(CONFIG_IOEXPANDER_SX1509)
-  list(APPEND SRCS nrf52_sx1509.c)
-endif()
-
-target_sources(board PRIVATE ${SRCS})