diff --git a/CMakeLists.txt b/CMakeLists.txt
index fa119b9..67da304 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -9,7 +9,7 @@
 option(ENABLE_ZLIB_SUPPORT "Build mbed TLS with zlib library." OFF)
 
 option(ENABLE_PROGRAMS "Build mbed TLS programs." ON)
-option(USE_CRYPTO_SUBMODULE "Build and use libmbedcrypto from the crypto submodule." OFF)
+option(USE_CRYPTO_SUBMODULE "Build and use libmbedcrypto from the crypto submodule." ON)
 
 option(UNSAFE_BUILD "Allow unsafe builds. These builds ARE NOT SECURE." OFF)