diff --git a/CMakeLists.txt b/CMakeLists.txt
index 34b7faa5..add6770f 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -48,7 +48,7 @@ else()
     message(STATUS "Legacy protobuf library located.")
     include_directories(${Protobuf_INCLUDE_DIRS})
     set(ABSL_INCLUDED_WITH_PROTOBUF OFF)
-    set(GOOGLETEST_INCLUDED_WITH_PROTOBUF ON)
+    set(GOOGLETEST_INCLUDED_WITH_PROTOBUF OFF)
   else()
     message(STATUS "Fetching external protobuf library.")
     include(third_party/protobuf.cmake)