diff --git a/CMakeLists.txt b/CMakeLists.txt
index d1b448ca3a..63b4ea20d4 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -260,7 +260,7 @@ if(NOT CXX11COMPILER_FOUND)
 endif()
 set(LYX_GCC11_MODE)
 if(UNIX OR MINGW)
-	if (CMAKE_CXX_COMPILER_ID MATCHES "^[cC]lang$")
+	if (CMAKE_CXX_COMPILER_ID MATCHES "^([cC]lang|AppleClang)$")
 	  # ignore the GCC_VERSION for clang
 	  # and use the resulting CXX11_STD_REGEX found in FindCXX11Compiler.cmake
 	  message(STATUS "Using clang")
diff --git a/development/cmake/modules/FindCXX11Compiler.cmake b/development/cmake/modules/FindCXX11Compiler.cmake
index 5c7b69866e..739d267bf0 100644
--- a/development/cmake/modules/FindCXX11Compiler.cmake
+++ b/development/cmake/modules/FindCXX11Compiler.cmake
@@ -34,7 +34,7 @@
 INCLUDE(CheckCXXSourceCompiles)
 INCLUDE(FindPackageHandleStandardArgs)
 
-if (CMAKE_CXX_COMPILER_ID MATCHES "^[cC]lang$")
+if (CMAKE_CXX_COMPILER_ID MATCHES "^([cC]lang|AppleClang)$")
   set(CXX11_FLAG_CANDIDATES "--std=c++11 -Wno-deprecated-register")
 else()
   if (CYGWIN)