diff --git a/CMakeLists.txt b/CMakeLists.txt
index 103adf6e5..0901ff5d2 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -57,6 +57,7 @@ if(NOT OT_PLATFORM IN_LIST OT_EXAMPLE_PLATFORMS)
     message(FATAL_ERROR "Platform unknown: ${OT_PLATFORM}")
 endif()
 
+list(APPEND OT_PUBLIC_INCLUDES ${PROJECT_BINARY_DIR}/etc/cmake)
 list(APPEND OT_PUBLIC_INCLUDES ${PROJECT_SOURCE_DIR}/etc/cmake)
 list(APPEND OT_PUBLIC_INCLUDES ${PROJECT_SOURCE_DIR}/include)
 if(NOT OT_PLATFORM MATCHES "none")
diff --git a/etc/cmake/checks.cmake b/etc/cmake/checks.cmake
index 82f367572..baaf41b83 100644
--- a/etc/cmake/checks.cmake
+++ b/etc/cmake/checks.cmake
@@ -32,4 +32,4 @@ check_function_exists("strlcat" HAVE_STRLCAT)
 check_function_exists("strlcpy" HAVE_STRLCPY)
 check_function_exists("strnlen" HAVE_STRNLEN)
 
-configure_file(${PROJECT_SOURCE_DIR}/etc/cmake/openthread-config-generic.h.in ${PROJECT_SOURCE_DIR}/etc/cmake/openthread-config-generic.h)
+configure_file(${PROJECT_SOURCE_DIR}/etc/cmake/openthread-config-generic.h.in ${PROJECT_BINARY_DIR}/etc/cmake/openthread-config-generic.h)