diff --git a/cmake/pkg/dune-istl-config.cmake.in b/cmake/pkg/dune-istl-config.cmake.in
index 03118d17554ae21c3f93827026f6bbc3298a5e2e..e5b6204aa622fbcbc59727111938f4e0cef0f497 100644
--- a/cmake/pkg/dune-istl-config.cmake.in
+++ b/cmake/pkg/dune-istl-config.cmake.in
@@ -1,7 +1,7 @@
 if(NOT @DUNE_MOD_NAME@_FOUND)
 #compute installation prefix relative to this file
 get_filename_component(_dir "${CMAKE_CURRENT_LIST_FILE}" PATH)
-get_filename_component(_prefix "${_dir}/../.." ABSOLUTE)
+get_filename_component(_prefix "${_dir}/../../.." ABSOLUTE)
 
 #import the target
 #include("${_prefix}/lib/cmake/@DUNE_MOD_NAME@-targets.cmake")