diff --git a/pyautogui/_pyautogui_osx.py b/pyautogui/_pyautogui_osx.py
index 1a895f0..8cd362c 100644
--- a/pyautogui/_pyautogui_osx.py
+++ b/pyautogui/_pyautogui_osx.py
@@ -444,5 +444,8 @@ def _dragTo(x, y, button):
     time.sleep(pyautogui.DARWIN_CATCH_UP_TIME) # needed to allow OS time to catch up.
 
 def _moveTo(x, y):
+    if (type(x) != int or type(y) != int):
+        raise Exception('The coordinates variable type must be int ')
     _sendMouseEvent(Quartz.kCGEventMouseMoved, x, y, 0)
     time.sleep(pyautogui.DARWIN_CATCH_UP_TIME) # needed to allow OS time to catch up.
+
diff --git a/pyautogui/_pyautogui_win.py b/pyautogui/_pyautogui_win.py
index f4119ac..625f616 100644
--- a/pyautogui/_pyautogui_win.py
+++ b/pyautogui/_pyautogui_win.py
@@ -366,6 +366,8 @@ def _moveTo(x, y):
     Returns:
       None
     """
+    if(type(x) != int or type(y) != int):
+        raise Exception('The coordinates variable type must be int ')
     ctypes.windll.user32.SetCursorPos(x, y)
     # This was a possible solution to issue #314 https://github.com/asweigart/pyautogui/issues/314
     # but I'd like to hang on to SetCursorPos because mouse_event() has been superseded.
@@ -571,3 +573,4 @@ def _vscroll(clicks, x, y):
     """
     return _scroll(clicks, x, y)
 
+
diff --git a/pyautogui/_pyautogui_x11.py b/pyautogui/_pyautogui_x11.py
index 38c8463..f34ee25 100644
--- a/pyautogui/_pyautogui_x11.py
+++ b/pyautogui/_pyautogui_x11.py
@@ -98,6 +98,8 @@ def _mouse_is_swapped():
 
 
 def _moveTo(x, y):
+    if (type(x) != int or type(y) != int):
+        raise Exception('The coordinates variable type must be int ')
     fake_input(_display, X.MotionNotify, x=x, y=y)
     _display.sync()