diff --git a/CMakeLists.txt b/CMakeLists.txt
index d952ac16..559d2645 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -27,7 +27,7 @@ if(NOT ${POLLER} STREQUAL "")
   set(ZMQ_FORCE_${UPPER_POLLER} 1)
 endif()
 
-set(ZMQ_CMAKE_MODULES_DIR ${CMAKE_CURRENT_LIST_DIR}/cmake/Modules)
+set(ZMQ_CMAKE_MODULES_DIR ${CMAKE_SOURCE_DIR}/cmake/Modules)
 list(APPEND CMAKE_MODULE_PATH ${ZMQ_CMAKE_MODULES_DIR})
 
 include(TestZMQVersion)