diff --git a/cpp/CMakeLists.txt b/cpp/CMakeLists.txt
index 073f76526..d777793e3 100644
--- a/cpp/CMakeLists.txt
+++ b/cpp/CMakeLists.txt
@@ -21,9 +21,6 @@ endif()
 if(benchmarks)
   add_subdirectory(benchmarks)
 endif()
-if(onnxrt)
-  add_subdirectory(${onnxruntime_LIBRARY_DIR})
-endif()
 if (docs)
   add_subdirectory(docs)
 endif()