diff --git a/CMakeLists.txt b/CMakeLists.txt
index fb43b95..c39e470 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -451,6 +451,10 @@ if (MSVC)
   endif()
 endif ()
 
+if(WINDOWS_STORE)
+  add_definitions(-DCRYPTOPP_DISABLE_NACL=1)
+endif()
+
 # Enable PIC for all target machines except 32-bit i386 due to register pressures.
 if (NOT CRYPTOPP_I386)
   SET(CMAKE_POSITION_INDEPENDENT_CODE 1)
@@ -1022,10 +1026,10 @@ endif ()
 # add_compile_definitions added in CMake 3.12
 if (${CMAKE_VERSION} VERSION_LESS "3.12")
   # https://stackoverflow.com/q/61250087
-  add_definitions("${CMAKE_CPP_FLAGS}" "${CMAKE_CXX_FLAGS}" "${CRYPTOPP_COMPILE_DEFINITIONS}" "${CRYPTOPP_COMPILE_OPTIONS}")
+  add_definitions(${CMAKE_CPP_FLAGS} ${CRYPTOPP_COMPILE_DEFINITIONS} ${CRYPTOPP_COMPILE_OPTIONS})
 else()
-  add_compile_definitions("${CMAKE_CPP_FLAGS}" "${CRYPTOPP_COMPILE_DEFINITIONS}")
-  add_compile_options("${CMAKE_CXX_FLAGS}" "${CRYPTOPP_COMPILE_OPTIONS}")
+  add_compile_definitions(${CRYPTOPP_COMPILE_DEFINITIONS})
+  add_compile_options(${CMAKE_CPP_FLAGS} ${CRYPTOPP_COMPILE_OPTIONS})
 endif()
 
 #============================================================================