--- a/cmake/CheckTrezor.cmake
+++ b/cmake/CheckTrezor.cmake
@@ -103,7 +103,7 @@
         "${CMAKE_CURRENT_LIST_DIR}/test-protobuf.cpp"
         CMAKE_FLAGS
         "-DINCLUDE_DIRECTORIES=${Protobuf_INCLUDE_DIR};${CMAKE_BINARY_DIR}"
-        "-DCMAKE_CXX_STANDARD=11"
+        "-DCMAKE_CXX_STANDARD=14"
         LINK_LIBRARIES ${Protobuf_LIBRARY}
         OUTPUT_VARIABLE OUTPUT
     )