diff --git a/src/video/cocoa/SDL_cocoawindow.m b/src/video/cocoa/SDL_cocoawindow.m
--- a/src/video/cocoa/SDL_cocoawindow.m
+++ b/src/video/cocoa/SDL_cocoawindow.m
@@ -49,6 +49,9 @@
 #endif
 
 
+#define FULLSCREEN_MASK (SDL_WINDOW_FULLSCREEN_DESKTOP | SDL_WINDOW_FULLSCREEN)
+
+
 @interface SDLWindow : NSWindow
 /* These are needed for borderless/fullscreen windows */
 - (BOOL)canBecomeKeyWindow;
@@ -89,9 +92,9 @@
 
 static Uint32 s_moveHack;
 
-static void ConvertNSRect(NSScreen *screen, NSRect *r)
+static void ConvertNSRect(NSScreen *screen, SDL_bool fullscreen, NSRect *r)
 {
-    NSRect visibleScreen = [screen visibleFrame];
+    NSRect visibleScreen = fullscreen ? [screen frame] : [screen visibleFrame];
     r->origin.y = (visibleScreen.origin.y + visibleScreen.size.height) - r->origin.y - r->size.height;
 }
@@ -410,8 +462,9 @@
     int x, y;
     SDL_Window *window = _data->window;
     NSWindow *nswindow = _data->nswindow;
+    BOOL fullscreen = window->flags & FULLSCREEN_MASK;
     NSRect rect = [nswindow contentRectForFrameRect:[nswindow frame]];
-    ConvertNSRect([nswindow screen], &rect);
+    ConvertNSRect([nswindow screen], fullscreen, &rect);
 
     if (s_moveHack) {
         SDL_bool blockMove = ((SDL_GetTicks() - s_moveHack) < 500);
@@ -422,7 +475,7 @@
             /* Cocoa is adjusting the window in response to a mode change */
             rect.origin.x = window->x;
             rect.origin.y = window->y;
-            ConvertNSRect([nswindow screen], &rect);
+            ConvertNSRect([nswindow screen], fullscreen, &rect);
             [nswindow setFrameOrigin:rect.origin];
             return;
         }
@@ -447,7 +500,7 @@
     NSWindow *nswindow = _data->nswindow;
     int x, y, w, h;
     NSRect rect = [nswindow contentRectForFrameRect:[nswindow frame]];
-    ConvertNSRect([nswindow screen], &rect);
+    ConvertNSRect([nswindow screen], (window->flags & FULLSCREEN_MASK), &rect);
     x = (int)rect.origin.x;
     y = (int)rect.origin.y;
     w = (int)rect.size.width;
@@ -932,7 +985,7 @@
     /* Fill in the SDL window with the window data */
     {
         NSRect rect = [nswindow contentRectForFrameRect:[nswindow frame]];
-        ConvertNSRect([nswindow screen], &rect);
+        ConvertNSRect([nswindow screen], (window->flags & FULLSCREEN_MASK), &rect);
         window->x = (int)rect.origin.x;
         window->y = (int)rect.origin.y;
         window->w = (int)rect.size.width;
@@ -1008,7 +1061,7 @@
     rect.origin.y = window->y;
     rect.size.width = window->w;
     rect.size.height = window->h;
-    ConvertNSRect([[NSScreen screens] objectAtIndex:0], &rect);
+    ConvertNSRect([[NSScreen screens] objectAtIndex:0], (window->flags & FULLSCREEN_MASK), &rect);
 
     style = GetWindowStyle(window);
 
@@ -1136,7 +1189,7 @@
     rect.origin.y = window->y;
     rect.size.width = window->w;
     rect.size.height = window->h;
-    ConvertNSRect([nswindow screen], &rect);
+    ConvertNSRect([nswindow screen], (window->flags & FULLSCREEN_MASK), &rect);
 
     moveHack = s_moveHack;
     s_moveHack = 0;
@@ -1336,7 +1389,7 @@
         rect.origin.y = bounds.y;
         rect.size.width = bounds.w;
         rect.size.height = bounds.h;
-        ConvertNSRect([nswindow screen], &rect);
+        ConvertNSRect([nswindow screen], fullscreen, &rect);
 
         /* Hack to fix origin on Mac OS X 10.4 */
         NSRect screenRect = [[nswindow screen] frame];
@@ -1354,7 +1407,7 @@
         rect.origin.y = window->windowed.y;
         rect.size.width = window->windowed.w;
         rect.size.height = window->windowed.h;
-        ConvertNSRect([nswindow screen], &rect);
+        ConvertNSRect([nswindow screen], fullscreen, &rect);
 
         if ([nswindow respondsToSelector: @selector(setStyleMask:)]) {
             [nswindow performSelector: @selector(setStyleMask:) withObject: (id)(uintptr_t)GetWindowStyle(window)];