diff --git a/CMakeLists.txt b/CMakeLists.txt
index bc48b8bd..4b5c4fea 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -324,7 +324,7 @@ set (CPACK_PACKAGE_VERSION_PATCH "3")
 SET (ACTIVE_NETWORK rai_active_network CACHE STRING "Selects which network parameters are used")
 set_property (CACHE ACTIVE_NETWORK PROPERTY STRINGS rai_test_network rai_beta_network rai_live_network)
 
-set_target_properties (cryptopp PROPERTIES COMPILE_FLAGS "-O2 -DCRYPTOPP_DISABLE_ASM")
+set_target_properties (cryptopp PROPERTIES COMPILE_FLAGS "-DCRYPTOPP_DISABLE_ASM")
 set_target_properties (argon2 PROPERTIES COMPILE_FLAGS "${PLATFORM_CXX_FLAGS} ${PLATFORM_COMPILE_FLAGS}")
 set_target_properties (blake2 PROPERTIES COMPILE_FLAGS "${PLATFORM_C_FLAGS} ${PLATFORM_COMPILE_FLAGS} -D__SSE2__")
 set_target_properties (ed25519 PROPERTIES COMPILE_FLAGS "${PLATFORM_C_FLAGS} ${PLATFORM_COMPILE_FLAGS} -DED25519_CUSTOMHASH -DED25519_CUSTOMRNG")