diff --git a/src/browser/native_window_mac.mm b/src/browser/native_window_mac.mm
index a5fb580261..fe3e4a3884 100644
--- a/src/browser/native_window_mac.mm
+++ b/src/browser/native_window_mac.mm
@@ -634,7 +634,13 @@ - (void)drawRect:(NSRect)dirtyRect {
 }
 
 void NativeWindowCocoa::SetVisibleOnAllWorkspaces(bool all_workspaces) {
-  // @TODO @mrfabbri NOT IMPLEMENTED
+  NSUInteger collectionBehavior = [window() collectionBehavior];
+  if (all_workspaces) {
+    collectionBehavior |= NSWindowCollectionBehaviorCanJoinAllSpaces;
+  } else {
+    collectionBehavior &= ~NSWindowCollectionBehaviorCanJoinAllSpaces;
+  }
+  [window() setCollectionBehavior:collectionBehavior];
 }
 
 void NativeWindowCocoa::SetShowInTaskbar(bool show) {