diff --git a/src/gui/macutilities.mm b/src/gui/macutilities.mm
index 05cb2167a..868590cb8 100644
--- a/src/gui/macutilities.mm
+++ b/src/gui/macutilities.mm
@@ -46,7 +46,7 @@ namespace MacUtils
     {
         @autoreleasepool
         {
-            NSImage *image = [[NSWorkspace sharedWorkspace]
+            const NSImage *image = [[NSWorkspace sharedWorkspace]
                 iconForContentType:[UTType typeWithFilenameExtension:ext.toNSString()]];
             if (image)
             {