diff --git a/3rdparty/everest/CMakeLists.txt b/3rdparty/everest/CMakeLists.txt
index babd183..3eff1c7 100644
--- a/3rdparty/everest/CMakeLists.txt
+++ b/3rdparty/everest/CMakeLists.txt
@@ -16,11 +16,11 @@
 
   if(INSTALL_MBEDTLS_HEADERS)
 
-      file(GLOB_RECURSE headers "${CMAKE_CURRENT_SOURCE_DIR}/include/everest/*.h")
-
-      install(FILES ${headers}
-          DESTINATION include/everest
-          PERMISSIONS OWNER_READ OWNER_WRITE GROUP_READ WORLD_READ)
+    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)