diff --git a/cmake/re-config.cmake b/cmake/re-config.cmake
index 7a5983b14..34ebe80a5 100644
--- a/cmake/re-config.cmake
+++ b/cmake/re-config.cmake
@@ -173,6 +173,8 @@ endif()
 if(${CMAKE_SYSTEM_NAME} MATCHES "Darwin")
   list(APPEND RE_DEFINITIONS DARWIN)
   include_directories(/opt/local/include)
+elseif(${CMAKE_SYSTEM_NAME} MATCHES "iOS")
+  list(APPEND RE_DEFINITIONS DARWIN)
 elseif(${CMAKE_SYSTEM_NAME} MATCHES "FreeBSD")
   list(APPEND RE_DEFINITIONS FREEBSD)
 elseif(${CMAKE_SYSTEM_NAME} MATCHES "OpenBSD")