diff --git a/src/port.c b/src/port.c
index fb3d1a3..7183fb2 100644
--- a/src/port.c
+++ b/src/port.c
@@ -110,17 +110,17 @@ int ep_port_update_events(ep_port_t* port_info) {
   return 0;
 }
 
-size_t ep_port_feed_events(ep_port_t* port_info,
-                           OVERLAPPED_ENTRY* completion_list,
-                           size_t completion_count,
-                           struct epoll_event* event_list,
-                           size_t max_event_count) {
+int ep_port_feed_events(ep_port_t* port_info,
+                        OVERLAPPED_ENTRY* completion_list,
+                        int completion_count,
+                        struct epoll_event* event_list,
+                        int max_event_count) {
   if (completion_count > max_event_count)
     abort();
 
-  size_t event_count = 0;
+  int event_count = 0;
 
-  for (size_t i = 0; i < completion_count; i++) {
+  for (int i = 0; i < completion_count; i++) {
     OVERLAPPED* overlapped = completion_list[i].lpOverlapped;
     ep_sock_t* sock_info = ep_sock_from_overlapped(overlapped);
     struct epoll_event* ev = &event_list[event_count];
diff --git a/src/port.h b/src/port.h
index cb06173..91e887f 100644
--- a/src/port.h
+++ b/src/port.h
@@ -31,11 +31,11 @@ EPOLL_INTERNAL int ep_port_close(ep_port_t* port_info);
 EPOLL_INTERNAL int ep_port_delete(ep_port_t* port_info);
 
 EPOLL_INTERNAL int ep_port_update_events(ep_port_t* port_info);
-EPOLL_INTERNAL size_t ep_port_feed_events(ep_port_t* port_info,
-                                          OVERLAPPED_ENTRY* completion_list,
-                                          size_t completion_count,
-                                          struct epoll_event* event_list,
-                                          size_t max_event_count);
+EPOLL_INTERNAL int ep_port_feed_events(ep_port_t* port_info,
+                                       OVERLAPPED_ENTRY* completion_list,
+                                       int completion_count,
+                                       struct epoll_event* event_list,
+                                       int max_event_count);
 
 EPOLL_INTERNAL poll_group_t* ep_port_acquire_poll_group(
     ep_port_t* port_info,