diff --git a/mouse.c b/mouse.c
index 78557dfd..5c80b17b 100644
--- a/mouse.c
+++ b/mouse.c
@@ -30,6 +30,7 @@
  */
 
 #include "mouse.h"
+#include "math.h"
 #include "common/util.h"
 #include "common/xutil.h"
 #include "globalconf.h"
@@ -224,8 +225,8 @@ luaA_mouse_coords(lua_State *L)
         if(!mouse_query_pointer_root(&mouse_x, &mouse_y, NULL, &mask))
             return 0;
 
-        x = luaA_getopt_integer_range(L, 1, "x", mouse_x, MIN_X11_COORDINATE, MAX_X11_COORDINATE);
-        y = luaA_getopt_integer_range(L, 1, "y", mouse_y, MIN_X11_COORDINATE, MAX_X11_COORDINATE);
+        x = round(luaA_getopt_number_range(L, 1, "x", mouse_x, MIN_X11_COORDINATE, MAX_X11_COORDINATE));
+        y = round(luaA_getopt_number_range(L, 1, "y", mouse_y, MIN_X11_COORDINATE, MAX_X11_COORDINATE));
 
         if(ignore_enter_notify)
             client_ignore_enterleave_events();