diff --git a/include/boost/fiber/barrier.hpp b/include/boost/fiber/barrier.hpp
index 7e4c1ad6..0596c71f 100644
--- a/include/boost/fiber/barrier.hpp
+++ b/include/boost/fiber/barrier.hpp
@@ -31,7 +31,7 @@ private:
 	condition		cond_{};
 
 public:
-	barrier( std::size_t);
+	explicit barrier( std::size_t);
 
     barrier( barrier const&) = delete;
     barrier & operator=( barrier const&) = delete;
diff --git a/src/barrier.cpp b/src/barrier.cpp
index 0b924cdd..a23ab50d 100644
--- a/src/barrier.cpp
+++ b/src/barrier.cpp
@@ -18,8 +18,8 @@ namespace boost {
 namespace fibers {
 
 barrier::barrier( std::size_t initial) :
-	initial_( initial),
-	current_( initial_) {
+	initial_{ initial },
+	current_{ initial_ } {
     if ( 0 == initial) {
         throw invalid_argument( static_cast< int >( std::errc::invalid_argument),
                                 "boost fiber: zero initial barrier count");
@@ -29,7 +29,7 @@ barrier::barrier( std::size_t initial) :
 bool
 barrier::wait() {
 	std::unique_lock< mutex > lk( mtx_);
-	const bool cycle( cycle_);
+	const bool cycle = cycle_;
 	if ( 0 == --current_) {
 		cycle_ = ! cycle_;
 		current_ = initial_;