diff --git a/3rdparty/CMakeLists.txt b/3rdparty/CMakeLists.txt
index dca4bd7..4c5b559 100644
--- a/3rdparty/CMakeLists.txt
+++ b/3rdparty/CMakeLists.txt
@@ -3,7 +3,11 @@
 list (APPEND thirdparty_inc)
 list (APPEND thirdparty_def)
 
-add_subdirectory(everest)
+execute_process(COMMAND ${MBEDTLS_PYTHON_EXECUTABLE} ${CMAKE_CURRENT_SOURCE_DIR}/../scripts/config.py -f ${CMAKE_CURRENT_SOURCE_DIR}/../include/mbedtls/config.h get MBEDTLS_ECDH_VARIANT_EVEREST_ENABLED RESULT_VARIABLE result)
+
+if(${result} EQUAL 0)
+    add_subdirectory(everest)
+endif()
 
 set(thirdparty_src ${thirdparty_src} PARENT_SCOPE)
 set(thirdparty_lib ${thirdparty_lib} PARENT_SCOPE)
diff --git a/3rdparty/everest/CMakeLists.txt b/3rdparty/everest/CMakeLists.txt
index c27a8e5..a900e4b 100644
--- a/3rdparty/everest/CMakeLists.txt
+++ b/3rdparty/everest/CMakeLists.txt
@@ -10,21 +10,15 @@
 
 list(APPEND everest_inc ${CMAKE_CURRENT_SOURCE_DIR}/include ${CMAKE_CURRENT_SOURCE_DIR}/include/everest ${CMAKE_CURRENT_SOURCE_DIR}/include/everest/kremlib)
 
-execute_process(COMMAND ${MBEDTLS_PYTHON_EXECUTABLE} ${CMAKE_CURRENT_SOURCE_DIR}/../../scripts/config.py -f ${CMAKE_CURRENT_SOURCE_DIR}/../../include/mbedtls/config.h get MBEDTLS_ECDH_VARIANT_EVEREST_ENABLED RESULT_VARIABLE result)
+if(INSTALL_MBEDTLS_HEADERS)
 
-if(${result} EQUAL 0)
+  install(DIRECTORY include/everest
+    DESTINATION include
+    FILE_PERMISSIONS OWNER_READ OWNER_WRITE GROUP_READ WORLD_READ
+    DIRECTORY_PERMISSIONS OWNER_READ OWNER_WRITE OWNER_EXECUTE GROUP_READ GROUP_EXECUTE WORLD_READ WORLD_EXECUTE
+    FILES_MATCHING PATTERN "*.h")
 
-  if(INSTALL_MBEDTLS_HEADERS)
-
-    install(DIRECTORY include/everest
-      DESTINATION include
-      FILE_PERMISSIONS OWNER_READ OWNER_WRITE GROUP_READ WORLD_READ
-      DIRECTORY_PERMISSIONS OWNER_READ OWNER_WRITE OWNER_EXECUTE GROUP_READ GROUP_EXECUTE WORLD_READ WORLD_EXECUTE
-      FILES_MATCHING PATTERN "*.h")
-
-  endif(INSTALL_MBEDTLS_HEADERS)
-
-endif()
+endif(INSTALL_MBEDTLS_HEADERS)
 
 set(thirdparty_src ${thirdparty_src} ${everest_src} PARENT_SCOPE)
 set(thirdparty_inc ${thirdparty_inc} ${everest_inc} PARENT_SCOPE)