diff --git a/src/eventia/eventia.cpp b/src/eventia/eventia.cpp
index 1233759..f3ee6ab 100644
--- a/src/eventia/eventia.cpp
+++ b/src/eventia/eventia.cpp
@@ -88,6 +88,9 @@ std::function<void()> Eventia::event_functor() {
 	return std::function<void()>([this]() {
 		std::unique_lock<std::mutex> lock(m_local->ev_mutex);
 		m_local->loop.run(0);
+#if !defined(NDEBUG)
+		std::cout << "ev loop stopped\n";
+#endif
 		m_local->loop_end_promise.set_value();
 	});
 }
diff --git a/src/eventia/signal.cpp b/src/eventia/signal.cpp
index e30f102..02f94cc 100644
--- a/src/eventia/signal.cpp
+++ b/src/eventia/signal.cpp
@@ -20,6 +20,9 @@
 #include <ev++.h>
 #include <mutex>
 #include <cassert>
+#if !defined(NDEBUG)
+#	include <iostream>
+#endif
 
 namespace eve {
 namespace {
@@ -63,6 +66,9 @@ void Signal::on_signal_ev() {
 }
 
 void Signal::on_loop_stopping() noexcept {
+#if !defined(NDEBUG)
+	std::cout << "Signal::on_loop_stopping()\n";
+#endif
 	m_local->signal.stop();
 }
 
diff --git a/src/eventia/timer.cpp b/src/eventia/timer.cpp
index 5e4f4c6..1370f60 100644
--- a/src/eventia/timer.cpp
+++ b/src/eventia/timer.cpp
@@ -21,6 +21,9 @@
 #include <mutex>
 #include <cassert>
 #include <algorithm>
+#if !defined(NDEBUG)
+#	include <iostream>
+#endif
 
 namespace eve {
 
@@ -86,6 +89,9 @@ void Timer::set_timer (double delay) {
 }
 
 void Timer::on_loop_stopping() noexcept {
+#if !defined(NDEBUG)
+	std::cout << "Timer::on_loop_stopping()\n";
+#endif
 	m_local->timer.stop();
 }
 
diff --git a/src/evloop.cpp b/src/evloop.cpp
index 44527ff..b33ee80 100644
--- a/src/evloop.cpp
+++ b/src/evloop.cpp
@@ -45,6 +45,9 @@ namespace {
 		{ }
 
 		virtual void on_signal() override {
+#if !defined(NDEBUG)
+			std::cout << "SIGINT received!!\n";
+#endif
 			m_eventia->stop();
 		}