diff --git a/remote_desk_client/remote_desk_client.cpp b/remote_desk_client/remote_desk_client.cpp
index 6eb6285..d54de25 100644
--- a/remote_desk_client/remote_desk_client.cpp
+++ b/remote_desk_client/remote_desk_client.cpp
@@ -51,13 +51,13 @@ typedef enum { mouse = 0, keyboard } ControlType;
 typedef enum { move = 0, left_down, left_up, right_down, right_up } MouseFlag;
 typedef enum { key_down = 0, key_up } KeyFlag;
 typedef struct {
-  long x;
-  long y;
+  size_t x;
+  size_t y;
   MouseFlag flag;
 } Mouse;
 
 typedef struct {
-  long key_value;
+  size_t key_value;
   KeyFlag flag;
 } Key;
 
diff --git a/remote_desk_server/remote_desk_server.cpp b/remote_desk_server/remote_desk_server.cpp
index 8dc8b9b..0095e54 100644
--- a/remote_desk_server/remote_desk_server.cpp
+++ b/remote_desk_server/remote_desk_server.cpp
@@ -28,13 +28,13 @@ typedef enum { mouse = 0, keyboard } ControlType;
 typedef enum { move = 0, left_down, left_up, right_down, right_up } MouseFlag;
 typedef enum { key_down = 0, key_up } KeyFlag;
 typedef struct {
-  long x;
-  long y;
+  size_t x;
+  size_t y;
   MouseFlag flag;
 } Mouse;
 
 typedef struct {
-  long key_value;
+  size_t key_value;
   KeyFlag flag;
 } Key;