diff --git a/vowpalwabbit/allreduce.h b/vowpalwabbit/allreduce.h
index 4c67963f89e..257dcc33e7e 100644
--- a/vowpalwabbit/allreduce.h
+++ b/vowpalwabbit/allreduce.h
@@ -79,7 +79,7 @@ class AllReduce
 
   AllReduce(size_t ptotal, const size_t pnode)
     : total(ptotal), node(pnode)
-  { assert(node >= 0 && node < total);
+  { assert(node < total);
   }
 
   virtual ~AllReduce()
diff --git a/vowpalwabbit/noop.cc b/vowpalwabbit/noop.cc
index c4c553db939..5503119a2e7 100644
--- a/vowpalwabbit/noop.cc
+++ b/vowpalwabbit/noop.cc
@@ -11,7 +11,7 @@ using namespace VW::config;
 
 void learn(char&, LEARNER::base_learner&, example&) {}
 
-LEARNER::base_learner* noop_setup(options_i& options, vw& all)
+LEARNER::base_learner* noop_setup(options_i& options, vw&)
 {
   bool noop = false;
   option_group_definition new_options("Noop Learner");
diff --git a/vowpalwabbit/parse_args.cc b/vowpalwabbit/parse_args.cc
index bceb4bddbbc..acf5739949a 100644
--- a/vowpalwabbit/parse_args.cc
+++ b/vowpalwabbit/parse_args.cc
@@ -1053,7 +1053,7 @@ void parse_output_preds(options_i& options, vw& all)
       if (options.was_supplied("binary"))
         all.trace_message << "Warning: --raw_predictions has no defined value when --binary specified, expect no output" << endl;
     }
-    if (raw_predictions.c_str() == "stdout")
+    if (strcmp(raw_predictions.c_str(),"stdout")==0)
       all.raw_prediction = 1; //stdout
     else
     {