diff --git a/compiler-rt/lib/xray/CMakeLists.txt b/compiler-rt/lib/xray/CMakeLists.txt
index 17dc356a254f..3798f557c42c 100644
--- a/compiler-rt/lib/xray/CMakeLists.txt
+++ b/compiler-rt/lib/xray/CMakeLists.txt
@@ -132,13 +132,6 @@ endforeach()
 include_directories(..)
 include_directories(../../include)
 
-if(COMPILER_RT_USE_LIBCXX)
-  if (SANITIZER_CXX_ABI_LIBNAME STREQUAL "libc++")
-    if (HAVE_LIBCXX)
-      set(SANITIZER_COMMON_CFLAGS "${SANITIZER_COMMON_CFLAGS} -isystem ${COMPILER_RT_LIBCXX_PATH}/include")
-    endif()
-  endif()
-endif()
 set(XRAY_CFLAGS ${SANITIZER_COMMON_CFLAGS})
 set(XRAY_COMMON_DEFINITIONS XRAY_HAS_EXCEPTIONS=1)