diff --git a/driver/io-unix.h b/driver/io-unix.h
index 0bcf9e4..7158308 100644
--- a/driver/io-unix.h
+++ b/driver/io-unix.h
@@ -113,7 +113,7 @@ private:
 
 			for (int i = 0; i < nfds; ++i) {
 				if (events[i].data.u64 == 0) {
-					while(1) {
+					while (1) {
 						struct ::signalfd_siginfo siginfo;
 						ssize_t n =
 							::read(signal_fd, &siginfo, sizeof(siginfo));
@@ -124,14 +124,14 @@ private:
 
 						notifySignalListener(siginfo.ssi_signo);
 					}
-				} else if( events[i].data.u64 == 1){
+				} else if (events[i].data.u64 == 1) {
 					uint8_t i;
-					if(pipefds[0] < 0){
+					if (pipefds[0] < 0) {
 						continue;
 					}
-					while(1){
+					while (1) {
 						ssize_t n = ::read(pipefds[0], &i, sizeof(i));
-						if(n < 0){
+						if (n < 0) {
 							break;
 						}
 					}
@@ -170,7 +170,7 @@ public:
 		::epoll_ctl(epoll_fd, EPOLL_CTL_ADD, signal_fd, &event);
 
 		int rc = ::pipe(pipefds);
-		if(rc < 0){
+		if (rc < 0) {
 			return;
 		}
 		memset(&event, 0, sizeof(event));
@@ -225,10 +225,10 @@ public:
 		}
 	}
 
-	void wake() const override {
-		/// @todo pipe() in the beginning and write something minor into it like uint8_t or sth
-		/// the value itself doesn't matter
-		if(pipefds[1] < 0){
+	void wake() override {
+		/// @todo pipe() in the beginning and write something minor into it like
+		/// uint8_t or sth the value itself doesn't matter
+		if (pipefds[1] < 0) {
 			return;
 		}
 		uint8_t i = 0;
diff --git a/source/async.h b/source/async.h
index 0637192..83aa6d6 100644
--- a/source/async.h
+++ b/source/async.h
@@ -25,9 +25,9 @@ public:
 
 class EventLoop;
 /*
-* Event class inspired directly by capn'proto.
-* https://github.com/capnproto/capnproto
-*/
+ * Event class inspired directly by capn'proto.
+ * https://github.com/capnproto/capnproto
+ */
 class Event {
 private:
 	EventLoop &loop;
@@ -217,7 +217,7 @@ public:
 	virtual void wait(const std::chrono::steady_clock::duration &) = 0;
 	virtual void wait(const std::chrono::steady_clock::time_point &) = 0;
 
-	virtual void wake() const = 0;
+	virtual void wake() = 0;
 };
 
 class SinkConveyorNode;
@@ -244,9 +244,9 @@ public:
 };
 
 /*
-* EventLoop class inspired directly by capn'proto.
-* https://github.com/capnproto/capnproto
-*/
+ * EventLoop class inspired directly by capn'proto.
+ * https://github.com/capnproto/capnproto
+ */
 class EventLoop {
 private:
 	friend class Event;
@@ -287,9 +287,9 @@ public:
 };
 
 /*
-* WaitScope class inspired directly by capn'proto.
-* https://github.com/capnproto/capnproto
-*/
+ * WaitScope class inspired directly by capn'proto.
+ * https://github.com/capnproto/capnproto
+ */
 class WaitScope {
 private:
 	EventLoop &loop;