diff --git a/test/signal_tracer.cpp b/test/signal_tracer.cpp
index 2b5e773..f0dba04 100644
--- a/test/signal_tracer.cpp
+++ b/test/signal_tracer.cpp
@@ -9,11 +9,9 @@ int main() {
     cpptrace::object_trace trace;
     while(true) {
         cpptrace::safe_object_frame frame;
-        // std::size_t res = read(STDIN_FILENO, &frame, sizeof(frame));
         std::size_t res = fread(&frame, sizeof(frame), 1, stdin);
         if(res == 0) {
             break;
-        //} else if(res != sizeof(frame)) {
         } else if(res != 1) {
             std::cerr<<"Oops, size mismatch "<<res<<" "<<sizeof(frame)<<std::endl;
             break;