diff --git a/CMakeLists.txt b/CMakeLists.txt
index 9facbc4..0591793 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -122,11 +122,11 @@ FetchContent_Declare(
     URL https://downloads.tesses.net/cache/libraries/source/mbedtls-3.6.4.tar.bz2
     
 )
-set(MBEDTLS_FATAL_WARNINGS OFF)
-set(ENABLE_TESTING OFF)
-set(ENABLE_PROGRAMS OFF)
+set(MBEDTLS_FATAL_WARNINGS OFF CACHE INTERNAL)
+set(ENABLE_TESTING OFF CACHE INTERNAL)
+set(ENABLE_PROGRAMS OFF CACHE INTERNAL)
 if(TESSESFRAMEWORK_ENABLE_SHARED)
-set(USE_SHARED_MBEDTLS_LIBRARY ON)
+set(USE_SHARED_MBEDTLS_LIBRARY ON CACHE INTERNAL)
 endif()
 FetchContent_MakeAvailable(mbedtls)
 else()