diff --git a/src/Avalonia.Base/Platform/Storage/FileIO/BclLauncher.cs b/src/Avalonia.Base/Platform/Storage/FileIO/BclLauncher.cs
index 242b8e6d41..96f489a222 100644
--- a/src/Avalonia.Base/Platform/Storage/FileIO/BclLauncher.cs
+++ b/src/Avalonia.Base/Platform/Storage/FileIO/BclLauncher.cs
@@ -49,13 +49,17 @@ internal class BclLauncher : ILauncher
         }
         else if (OperatingSystemEx.IsWindows() || OperatingSystemEx.IsMacOS())
         {
-            using var process = Process.Start(new ProcessStartInfo
+            var info = new ProcessStartInfo
             {
                 FileName = OperatingSystemEx.IsWindows() ? urlOrFile : "open",
-                Arguments = OperatingSystemEx.IsMacOS() ? $"{urlOrFile}" : "",
                 CreateNoWindow = true,
                 UseShellExecute = OperatingSystemEx.IsWindows()
-            });
+            };
+            // Using the argument list avoids having to escape spaces and other special 
+            // characters that are part of valid macos file and folder paths.
+            if (OperatingSystemEx.IsMacOS())
+                info.ArgumentList.Add(urlOrFile);
+            using var process = Process.Start(info);
             return true;
         }
         else