diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 40cd480..08cd37f 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -13,5 +13,6 @@
 # limitations under the License.
 
 add_definitions(-DMONGO_CXX_DRIVER_COMPILING)
+add_definitions(-D_SCL_SECURE_NO_WARNINGS)
 add_subdirectory(bsoncxx)
 add_subdirectory(mongocxx)
