diff --git a/main.cpp b/main.cpp
index 1b67542..16de440 100644
--- a/main.cpp
+++ b/main.cpp
@@ -33,7 +33,7 @@ int main(int argc, const char *argv[])
 
     forth::initialize<&fth>(dict.end());
     fth->add(".", [](auto) {
-        char buf[32];
+        char buf[32] = {};
         std::to_chars(buf, buf + sizeof(buf), fth->pop(), fth->base);
         std::cout << buf << ' ';
     });