diff --git a/src/example.cpp b/src/example.cpp
index d7a2426..c6da3a0 100644
--- a/src/example.cpp
+++ b/src/example.cpp
@@ -62,7 +62,7 @@ parse(int argc, const char* argv[])
       ("tab-expansion", "Tab\texpansion")
       ("int", "An integer", cxxopts::value<int>(), "N")
       ("float", "A floating point number", cxxopts::value<float>())
-      ("vector", "A list of doubles", cxxopts::value<std::vector<double>>()->default_value(""))
+      ("vector", "A list of doubles", cxxopts::value<std::vector<double>>())
       ("option_that_is_too_long_for_the_help", "A very long option")
       ("l,list", "List all parsed arguments (including default values)")
       ("range", "Use range-for to list arguments")