diff --git a/build/cmake/demos/CMakeLists.txt b/build/cmake/demos/CMakeLists.txt
index ee5f973dc9..a905d3e857 100644
--- a/build/cmake/demos/CMakeLists.txt
+++ b/build/cmake/demos/CMakeLists.txt
@@ -26,7 +26,7 @@ function(wx_add_demo name)
         foreach(data_file ${DEMO_DATA})
             list(APPEND cmds COMMAND ${CMAKE_COMMAND}
                 -E copy ${wxSOURCE_DIR}/demos/${name}/${data_file}
-                ${wxOUTPUT_DIR}/${data_file})
+                ${wxOUTPUT_DIR}/${wxPLATFORM_LIB_DIR}/${data_file})
         endforeach()
         add_custom_command(
             TARGET ${DEMO_NAME} ${cmds}
diff --git a/build/cmake/functions.cmake b/build/cmake/functions.cmake
index 4edd9c8ff2..1720672ea7 100644
--- a/build/cmake/functions.cmake
+++ b/build/cmake/functions.cmake
@@ -574,7 +574,7 @@ function(wx_add_sample name)
         foreach(data_file ${SAMPLE_DATA})
             list(APPEND cmds COMMAND ${CMAKE_COMMAND}
                 -E copy ${wxSOURCE_DIR}/samples/${wxSAMPLE_SUBDIR}${name}/${data_file}
-                ${wxOUTPUT_DIR}/${data_file})
+                ${wxOUTPUT_DIR}/${wxPLATFORM_LIB_DIR}/${data_file})
         endforeach()
         add_custom_command(
             TARGET ${target_name} ${cmds}