diff --git a/Sofa/framework/Config/cmake/Modules/Findmetis.cmake b/Sofa/framework/Config/cmake/Modules/Findmetis.cmake
index 6bc48aead4a..19df507620e 100644
--- a/Sofa/framework/Config/cmake/Modules/Findmetis.cmake
+++ b/Sofa/framework/Config/cmake/Modules/Findmetis.cmake
@@ -62,7 +62,9 @@ if(TARGET metis)
     _metis_check_version()
     set(metis_FOUND ${metis_VERSION_OK})
   endif()
-  add_library(metis::metis ALIAS metis)
+  if(NOT TARGET metis::metis)
+    add_library(metis::metis ALIAS metis)
+  endif()
 else()
 
   if(NOT metis_INCLUDE_DIR)