diff --git a/minui/events.c b/minui/events.c
index 008a7d8..df7dad4 100644
--- a/minui/events.c
+++ b/minui/events.c
@@ -168,7 +168,7 @@
     }
 }
 
-int ev_get_input(int fd, unsigned int epevents, struct input_event *ev)
+int ev_get_input(int fd, uint32_t epevents, struct input_event *ev)
 {
     int r;
 
diff --git a/minui/minui.h b/minui/minui.h
index ab08202..573dd71 100644
--- a/minui/minui.h
+++ b/minui/minui.h
@@ -50,7 +50,7 @@
 // see http://www.mjmwired.net/kernel/Documentation/input/ for info.
 struct input_event;
 
-typedef int (*ev_callback)(int fd, unsigned int epevents, void *data);
+typedef int (*ev_callback)(int fd, uint32_t epevents, void *data);
 typedef int (*ev_set_key_callback)(int code, int value, void *data);
 
 int ev_init(ev_callback input_cb, void *data);
@@ -65,7 +65,7 @@
  */
 int ev_wait(int timeout);
 
-int ev_get_input(int fd, unsigned int epevents, struct input_event *ev);
+int ev_get_input(int fd, uint32_t epevents, struct input_event *ev);
 void ev_dispatch(void);
 int ev_get_epollfd(void);
 
diff --git a/ui.cpp b/ui.cpp
index 08c291d..67a2500 100644
--- a/ui.cpp
+++ b/ui.cpp
@@ -63,7 +63,7 @@
 }
 
 
-int RecoveryUI::input_callback(int fd, unsigned int epevents, void* data)
+int RecoveryUI::input_callback(int fd, uint32_t epevents, void* data)
 {
     struct input_event ev;
     int ret;
diff --git a/ui.h b/ui.h
index 22f3e5c..8cc1da1 100644
--- a/ui.h
+++ b/ui.h
@@ -134,7 +134,7 @@
     pthread_t input_t;
 
     static void* input_thread(void* cookie);
-    static int input_callback(int fd, unsigned int epevents, void* data);
+    static int input_callback(int fd, uint32_t epevents, void* data);
     void process_key(int key_code, int updown);
     bool usb_connected();