diff --git a/cmake/CheckLinkerFlag.cmake b/cmake/CheckLinkerFlag.cmake
index 7ecf5f610..69eefe810 100644
--- a/cmake/CheckLinkerFlag.cmake
+++ b/cmake/CheckLinkerFlag.cmake
@@ -6,7 +6,7 @@ macro(CHECK_LINKER_FLAG flag VARIABLE)
       message(STATUS "Looking for ${flag} linker flag")
     endif()
 
-    set(_cle_source ${CMAKE_SOURCE_DIR}/cmake/CheckLinkerFlag.c)
+    set(_cle_source ${monero_SOURCE_DIR}/cmake/CheckLinkerFlag.c)
 
     set(saved_CMAKE_C_FLAGS ${CMAKE_C_FLAGS})
     set(CMAKE_C_FLAGS "${flag}")