diff --git a/CMakeLists.txt b/CMakeLists.txt
index 298343e0d..60ac7bde0 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -33,7 +33,7 @@ else()
     # Standard behaviour use libzmq included in this repo (libs/libzmq)
     FetchContent_Declare(
         libzmq
-        URL ${CMAKE_SOURCE_DIR}/libs/libzmq/libzmq-4.3.4.tar.gz
+        URL ${CMAKE_CURRENT_SOURCE_DIR}/libs/libzmq/libzmq-4.3.4.tar.gz
         URL_HASH MD5=cc20b769ac10afa352e5ed2769bb23b3
     )
 endif()