diff --git a/changelog_unreleased/4049-d2-hooks-may-not-have-their-ioservice-s-poll-method-called-frequently-enough b/changelog_unreleased/4049-d2-hooks-may-not-have-their-ioservice-s-poll-method-called-frequently-enough
index 01d6c52631..57a60c0a7b 100644
--- a/changelog_unreleased/4049-d2-hooks-may-not-have-their-ioservice-s-poll-method-called-frequently-enough
+++ b/changelog_unreleased/4049-d2-hooks-may-not-have-their-ioservice-s-poll-method-called-frequently-enough
@@ -1,5 +1,5 @@
 [bug]		tmark
 	Fixed an issue in kea-dhcp-ddns which was
-	causing GSSI key exchanges to timeout when
-	NCR traffic is intermittent. 
+	causing GSS-TSIG key exchanges to timeout when
+	NCR traffic is intermittent.
 	(Gitlab #4049)
diff --git a/src/bin/d2/d2_process.cc b/src/bin/d2/d2_process.cc
index 3c1d2d07be..21aab0fc88 100644
--- a/src/bin/d2/d2_process.cc
+++ b/src/bin/d2/d2_process.cc
@@ -163,7 +163,7 @@ D2Process::runIO() {
         // Polling ran no handlers so either none are ready or the service has been
         // stopped.  Either way, call runOneFor() to wait for a IO event on the
         // main service. If the service is stopped it will return immediately
-        //  with a cnt of zero and timed_out set to false.
+        // with a cnt of zero and timed_out set to false.
         bool timed_out;
         cnt = getIOService()->runOneFor(IO_SERVICE_RUN_TIME_USECS, timed_out);
         if (timed_out) {
diff --git a/src/lib/asiolink/io_service.cc b/src/lib/asiolink/io_service.cc
index cb63b57b32..919ce6e143 100644
--- a/src/lib/asiolink/io_service.cc
+++ b/src/lib/asiolink/io_service.cc
@@ -68,10 +68,10 @@ public:
     /// number of handlers executed is zero and timed_out is set to
     /// false this indicates that the IOService was stopped.
     ///
-    /// @param wait_time_usecs wait time in microseconds
-    /// @param[out] time_out set to true if th wait time expired
+    /// @param wait_time_usecs wait time in microseconds.
+    /// @param[out] time_out set to true if the wait time expired
     /// without any handlers executing.
-    /// timed_out parameter will be set true if the wait time elapsed
+    /// timed_out parameter will be set true if the wait time elapsed.
     ///
     /// @return The number of handlers that were executed.
     size_t runOneFor(size_t wait_time_usecs, bool& timed_out) {
diff --git a/src/lib/asiolink/io_service.h b/src/lib/asiolink/io_service.h
index 5d60dbb2ea..7dc64715a5 100644
--- a/src/lib/asiolink/io_service.h
+++ b/src/lib/asiolink/io_service.h
@@ -69,10 +69,10 @@ public:
     /// number of handlers executed is zero and timed_out is set to
     /// false this indicates that the IOService was stopped.
     ///
-    /// @param wait_time_usecs wait time in microseconds
-    /// @param[out] time_out set to true if th wait time expired
+    /// @param wait_time_usecs wait time in microseconds.
+    /// @param[out] time_out set to true if the wait time expired
     /// without any handlers executing.
-    /// timed_out parameter will be set true if the wait time elapsed
+    /// timed_out parameter will be set true if the wait time elapsed.
     ///
     /// @return The number of handlers that were executed.
     size_t runOneFor(size_t wait_time_usecs, bool& timed_out);