diff --git a/3rdParty/libarchive/ext/CMakeLists.txt b/3rdParty/libarchive/ext/CMakeLists.txt
index dfe2587..79df758 100644
--- a/3rdParty/libarchive/ext/CMakeLists.txt
+++ b/3rdParty/libarchive/ext/CMakeLists.txt
@@ -68,7 +68,7 @@ ExternalProject_Add(lz4
                     -DCMAKE_INSTALL_PREFIX:PATH=${CMAKE_BINARY_DIR}/INSTALL
         )
 
-if (${PLATFORM} STREQUAL "OS64" OR ${PLATFORM} STREQUAL "OS64COMBINED")
+if ("${PLATFORM}" STREQUAL "OS64" OR "${PLATFORM}" STREQUAL "OS64COMBINED")
     set(EXTRA_ARGS -DHAVE__FSEEKI64:BOOL=OFF -DHAVE_FUTIMESAT:BOOL=OFF)
 endif()
 
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 0c9a17f..9993c64 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,6 +1,6 @@
 cmake_minimum_required(VERSION 3.28 FATAL_ERROR)
 
-if (${PLATFORM} STREQUAL "OS64" OR ${PLATFORM} STREQUAL "OS64COMBINED")
+if ("${PLATFORM}" STREQUAL "OS64" OR "${PLATFORM}" STREQUAL "OS64COMBINED")
     set(ENABLE_ARC OFF)
     set(DEPLOYMENT_TARGET "14.0")
     set(CMAKE_TOOLCHAIN_FILE "${CMAKE_SOURCE_DIR}/cmake/toolchain/ios.toolchain.cmake")