diff --git a/CMakeLists.txt b/CMakeLists.txt
index b78ce5c..dacadca 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -30,7 +30,7 @@ endif()
 include(CMakeCompilers.txt)
 
 
-set(CMAKE_MODULE_PATH ${CMAKE_SOURCE_DIR}/cmake)
+set(CMAKE_MODULE_PATH ${CMAKE_CURRENT_SOURCE_DIR}/cmake)
 find_package(GMP REQUIRED)
 find_package(MPFR REQUIRED)