diff --git a/event-internal.h b/event-internal.h
index ed36fb0b..8d334caa 100644
--- a/event-internal.h
+++ b/event-internal.h
@@ -467,7 +467,7 @@ int event_add_nolock_(struct event *ev,
  * if it is running in another thread and it doesn't have EV_FINALIZE set.
  */
 #define EVENT_DEL_AUTOBLOCK 2
-/** Argument for event_del_nolock_. Tells event_del to procede even if the
+/** Argument for event_del_nolock_. Tells event_del to proceed even if the
  * event is set up for finalization rather for regular use.*/
 #define EVENT_DEL_EVEN_IF_FINALIZING 3
 int event_del_nolock_(struct event *ev, int blocking);
diff --git a/sample/event-read-fifo.c b/sample/event-read-fifo.c
index 27b0b530..a17b9bd9 100644
--- a/sample/event-read-fifo.c
+++ b/sample/event-read-fifo.c
@@ -129,10 +129,10 @@ main(int argc, char **argv)
 
 	fprintf(stderr, "Write data to %s\n", fifo);
 #endif
-	/* Initalize the event library */
+	/* Initialize the event library */
 	base = event_base_new();
 
-	/* Initalize one event */
+	/* Initialize one event */
 #ifdef _WIN32
 	evfifo = event_new(base, (evutil_socket_t)socket, EV_READ|EV_PERSIST, fifo_read,
                            event_self_cbarg());
diff --git a/sample/signal-test.c b/sample/signal-test.c
index a8564840..6468c119 100644
--- a/sample/signal-test.c
+++ b/sample/signal-test.c
@@ -56,14 +56,14 @@ main(int argc, char **argv)
 	(void) WSAStartup(wVersionRequested, &wsaData);
 #endif
 
-	/* Initalize the event library */
+	/* Initialize the event library */
 	base = event_base_new();
 	if (!base) {
 		ret = 1;
 		goto out;
 	}
 
-	/* Initalize one event */
+	/* Initialize one event */
 	signal_int = evsignal_new(base, SIGINT, signal_cb, event_self_cbarg());
 	if (!signal_int) {
 		ret = 2;
diff --git a/sample/time-test.c b/sample/time-test.c
index 8d0fd91b..671a1d21 100644
--- a/sample/time-test.c
+++ b/sample/time-test.c
@@ -88,10 +88,10 @@ main(int argc, char **argv)
 		flags = 0;
 	}
 
-	/* Initalize the event library */
+	/* Initialize the event library */
 	base = event_base_new();
 
-	/* Initalize one event */
+	/* Initialize one event */
 	event_assign(&timeout, base, -1, flags, timeout_cb, (void*) &timeout);
 
 	evutil_timerclear(&tv);
diff --git a/test/regress_et.c b/test/regress_et.c
index 5fa87a39..1b1f819e 100644
--- a/test/regress_et.c
+++ b/test/regress_et.c
@@ -102,7 +102,7 @@ test_edgetriggered(void *data_)
 				"support edge-triggering", event_base_get_method(base),
 				supports_et?"":"not "));
 
-	/* Initalize one event */
+	/* Initialize one event */
 	ev = event_new(base, pair[1], EV_READ|EV_ET|EV_PERSIST, read_cb, &ev);
 	tt_assert(ev != NULL);
 	tt_int_op(event_add(ev, NULL), ==, 0);
diff --git a/test/test-changelist.c b/test/test-changelist.c
index 6e2466d5..fd1a17f5 100644
--- a/test/test-changelist.c
+++ b/test/test-changelist.c
@@ -182,11 +182,11 @@ main(int argc, char **argv)
 	if (evutil_socketpair(AF_UNIX, SOCK_STREAM, 0, pair) == -1)
 		return (1);
 
-	/* Initalize the event library */
+	/* Initialize the event library */
 	if (!(base = event_base_new()))
 		return (1);
 
-	/* Initalize a timeout to terminate the test */
+	/* Initialize a timeout to terminate the test */
 	timeout = evtimer_new(base,timeout_cb,&timeout);
 	/* and watch for writability on one end of the pipe */
 	ev = event_new(base,pair[1],EV_WRITE | EV_PERSIST, write_cb, &ev);
diff --git a/test/test-eof.c b/test/test-eof.c
index 284ead78..de2fd88b 100644
--- a/test/test-eof.c
+++ b/test/test-eof.c
@@ -102,10 +102,10 @@ main(int argc, char **argv)
 		return (1);
 	shutdown(pair[0], EVUTIL_SHUT_WR);
 
-	/* Initalize the event library */
+	/* Initialize the event library */
 	event_init();
 
-	/* Initalize one event */
+	/* Initialize one event */
 	event_set(&ev, pair[1], EV_READ | EV_TIMEOUT, read_cb, &ev);
 
 	event_add(&ev, &timeout);
diff --git a/test/test-init.c b/test/test-init.c
index 92fbc6b1..aea49ee9 100644
--- a/test/test-init.c
+++ b/test/test-init.c
@@ -57,7 +57,7 @@ main(int argc, char **argv)
 	(void) WSAStartup(wVersionRequested, &wsaData);
 #endif
 
-	/* Initalize the event library */
+	/* Initialize the event library */
 	event_init();
 
 	return (0);
diff --git a/test/test-time.c b/test/test-time.c
index c4d031e7..c90f0f11 100644
--- a/test/test-time.c
+++ b/test/test-time.c
@@ -94,13 +94,13 @@ main(int argc, char **argv)
 
 	evutil_weakrand_seed_(&weakrand_state, 0);
 
-	/* Initalize the event library */
+	/* Initialize the event library */
 	event_init();
 
 	for (i = 0; i < NEVENT; i++) {
 		ev[i] = malloc(sizeof(struct event));
 
-		/* Initalize one event */
+		/* Initialize one event */
 		evtimer_set(ev[i], time_cb, ev[i]);
 		tv.tv_sec = 0;
 		tv.tv_usec = rand_int(50000);
diff --git a/test/test-weof.c b/test/test-weof.c
index 52c7afbd..68e7cd45 100644
--- a/test/test-weof.c
+++ b/test/test-weof.c
@@ -99,10 +99,10 @@ main(int argc, char **argv)
 	if (evutil_socketpair(AF_UNIX, SOCK_STREAM, 0, pair) == -1)
 		return (1);
 
-	/* Initalize the event library */
+	/* Initialize the event library */
 	event_init();
 
-	/* Initalize one event */
+	/* Initialize one event */
 	event_set(&ev, pair[1], EV_WRITE, write_cb, &ev);
 
 	event_add(&ev, NULL);