diff --git a/CMakeLists.txt b/CMakeLists.txt
index d12530ea38..acb4c3599e 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -241,7 +241,7 @@ endif()
 if(UNIX OR MINGW OR MSYS OR (USE_CLANG AND NOT WINDOWS) OR VITA OR PSP OR PS2 OR N3DS)
   set(OPT_DEF_LIBC ON)
 endif()
-if(WINDOWS)
+if(WINDOWS OR IOS OR TVOS)
   set(SDL_SYSTEM_ICONV_DEFAULT OFF)
 else()
   set(SDL_SYSTEM_ICONV_DEFAULT ON)