diff --git a/include/aws/mqtt/private/v5/mqtt5_to_mqtt3_adapter_impl.h b/include/aws/mqtt/private/v5/mqtt5_to_mqtt3_adapter_impl.h
index f65de837..c424db6a 100644
--- a/include/aws/mqtt/private/v5/mqtt5_to_mqtt3_adapter_impl.h
+++ b/include/aws/mqtt/private/v5/mqtt5_to_mqtt3_adapter_impl.h
@@ -315,7 +315,7 @@ struct aws_mqtt_client_connection_5_impl {
     aws_mqtt_client_on_connection_complete_fn *on_connection_complete;
     void *on_connection_complete_user_data;
 
-    aws_mqtt_client_on_termination_fn *on_termination;
+    aws_mqtt_client_on_connection_termination_fn *on_termination;
     void *on_termination_user_data;
 };
 
diff --git a/source/v5/mqtt5_to_mqtt3_adapter.c b/source/v5/mqtt5_to_mqtt3_adapter.c
index 9753c4a3..4be88d05 100644
--- a/source/v5/mqtt5_to_mqtt3_adapter.c
+++ b/source/v5/mqtt5_to_mqtt3_adapter.c
@@ -1087,7 +1087,7 @@ struct aws_mqtt_set_on_termination_handlers_task {
     struct aws_allocator *allocator;
     struct aws_mqtt_client_connection_5_impl *adapter;
 
-    aws_mqtt_client_on_termination_fn *on_termination_callback;
+    aws_mqtt_client_on_connection_termination_fn *on_termination_callback;
     void *on_termination_ud;
 };
 
@@ -1112,7 +1112,7 @@ static void s_set_on_termination_handlers_task_fn(struct aws_task *task, void *a
 static struct aws_mqtt_set_on_termination_handlers_task *s_aws_mqtt_set_on_termination_handler_task_new(
     struct aws_allocator *allocator,
     struct aws_mqtt_client_connection_5_impl *adapter,
-    aws_mqtt_client_on_termination_fn *on_termination,
+    aws_mqtt_client_on_connection_termination_fn *on_termination,
     void *on_termination_user_data) {
 
     struct aws_mqtt_set_on_termination_handlers_task *set_task =
@@ -1129,7 +1129,7 @@ static struct aws_mqtt_set_on_termination_handlers_task *s_aws_mqtt_set_on_termi
 
 static int s_aws_mqtt_client_connection_5_set_termination_handler(
     void *impl,
-    aws_mqtt_client_on_termination_fn *on_termination,
+    aws_mqtt_client_on_connection_termination_fn *on_termination,
     void *on_termination_ud) {
     struct aws_mqtt_client_connection_5_impl *adapter = impl;
 
@@ -2953,7 +2953,7 @@ static struct aws_mqtt_client_connection_vtable s_aws_mqtt_client_connection_5_v
     .set_connection_result_handlers = s_aws_mqtt_client_connection_5_set_connection_result_handlers,
     .set_connection_interruption_handlers_fn = s_aws_mqtt_client_connection_5_set_interruption_handlers,
     .set_connection_closed_handler_fn = s_aws_mqtt_client_connection_5_set_on_closed_handler,
-    .set_termination_handler_fn = s_aws_mqtt_client_connection_5_set_termination_handler,
+    .set_connection_termination_handler_fn = s_aws_mqtt_client_connection_5_set_termination_handler,
     .set_on_any_publish_handler_fn = s_aws_mqtt_client_connection_5_set_on_any_publish_handler,
     .connect_fn = s_aws_mqtt_client_connection_5_connect,
     .reconnect_fn = s_aws_mqtt_client_connection_5_reconnect,
diff --git a/tests/v5/mqtt5_to_mqtt3_adapter_tests.c b/tests/v5/mqtt5_to_mqtt3_adapter_tests.c
index bfe6abf4..8c85e884 100644
--- a/tests/v5/mqtt5_to_mqtt3_adapter_tests.c
+++ b/tests/v5/mqtt5_to_mqtt3_adapter_tests.c
@@ -619,7 +619,7 @@ int aws_mqtt5_to_mqtt3_adapter_test_fixture_init(
     aws_mutex_init(&fixture->lock);
     aws_condition_variable_init(&fixture->signal);
 
-    aws_mqtt_client_connection_set_termination_handler(
+    aws_mqtt_client_connection_set_connection_termination_handler(
         fixture->connection, s_aws_mqtt5_to_mqtt3_adapter_test_fixture_termination_handler, fixture);
     aws_mqtt_client_connection_set_connection_closed_handler(
         fixture->connection, s_aws_mqtt5_to_mqtt3_adapter_test_fixture_closed_handler, fixture);