diff --git a/CMakeLists.txt b/CMakeLists.txt
index 41f41411405..ce559ed7832 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -169,6 +169,8 @@ endif()
 option(LLVM_ENABLE_PEDANTIC "Compile with pedantic enabled." ON)
 option(LLVM_ENABLE_WERROR "Fail and stop if a warning is triggered." OFF)
 
+set(CMAKE_INCLUDE_CURRENT_DIR ON)
+
 include_directories( ${LLVM_BINARY_DIR}/include ${LLVM_MAIN_INCLUDE_DIR})
 
 if( ${CMAKE_SYSTEM_NAME} MATCHES SunOS )