diff --git a/src/win32_window.c b/src/win32_window.c
index 1063034a..45111ab4 100644
--- a/src/win32_window.c
+++ b/src/win32_window.c
@@ -539,7 +539,7 @@ static LRESULT CALLBACK windowProc(HWND hWnd, UINT uMsg,
             if (newCursorX != window->win32.oldCursorX ||
                 newCursorY != window->win32.oldCursorY)
             {
-                int x, y;
+                double x, y;
 
                 if (window->cursorMode == GLFW_CURSOR_CAPTURED)
                 {