diff --git a/cmake/macros/SetupExternalsBinaryDir.cmake b/cmake/macros/SetupExternalsBinaryDir.cmake
index 04bd00643c..a118dcf543 100644
--- a/cmake/macros/SetupExternalsBinaryDir.cmake
+++ b/cmake/macros/SetupExternalsBinaryDir.cmake
@@ -22,11 +22,11 @@ macro(SETUP_EXTERNALS_BINARY_DIR)
     endif ()
   endif ()
 
-  set(EXTERNALS_BINARY_ROOT_DIR "${CMAKE_CURRENT_SOURCE_DIR}/build-ext")
+  set(EXTERNALS_BINARY_ROOT_DIR "${CMAKE_CURRENT_BINARY_DIR}/ext")
   if (ANDROID)
     set(EXTERNALS_BINARY_DIR "${EXTERNALS_BINARY_ROOT_DIR}/android/${CMAKE_GENERATOR_FOLDER_NAME}")
   else ()
     set(EXTERNALS_BINARY_DIR "${EXTERNALS_BINARY_ROOT_DIR}/${CMAKE_GENERATOR_FOLDER_NAME}")
   endif ()
 
-endmacro()
\ No newline at end of file
+endmacro()