diff --git a/cmake/modules/TableGen.cmake b/cmake/modules/TableGen.cmake
index 7d8a9e567b1..bc25a73b113 100644
--- a/cmake/modules/TableGen.cmake
+++ b/cmake/modules/TableGen.cmake
@@ -4,7 +4,7 @@
 
 macro(tablegen project ofn)
   file(GLOB local_tds "*.td")
-  file(GLOB_RECURSE global_tds "${LLVM_MAIN_SRC_DIR}/include/llvm/*.td")
+  file(GLOB_RECURSE global_tds "${LLVM_MAIN_INCLUDE_DIR}/llvm/*.td")
 
   if (IS_ABSOLUTE ${LLVM_TARGET_DEFINITIONS})
     set(LLVM_TARGET_DEFINITIONS_ABSOLUTE ${LLVM_TARGET_DEFINITIONS})