diff --git a/libs/libxx/libcxxabi.cmake b/libs/libxx/libcxxabi.cmake
index 30393e0113..f6715a76d9 100644
--- a/libs/libxx/libcxxabi.cmake
+++ b/libs/libxx/libcxxabi.cmake
@@ -20,7 +20,7 @@
 
 if(NOT EXISTS ${CMAKE_CURRENT_LIST_DIR}/libcxxabi)
 
-  set(LIBCXXABI_VERSION CONFIG_LIBCXXABI_VERSION)
+  set(LIBCXXABI_VERSION ${CONFIG_LIBCXXABI_VERSION})
 
   FetchContent_Declare(
     libcxxabi