diff --git a/src/apprt/gtk/App.zig b/src/apprt/gtk/App.zig
index d74b07570..12bac989a 100644
--- a/src/apprt/gtk/App.zig
+++ b/src/apprt/gtk/App.zig
@@ -1644,7 +1644,7 @@ fn gtkActionPresentSurface(
 
     // Convert that u64 to pointer to a core surface. A value of zero
     // means that there was no target surface for the notification so
-    // we dont' focus any surface.
+    // we don't focus any surface.
     const ptr_int: u64 = c.g_variant_get_uint64(parameter);
     if (ptr_int == 0) return;
     const surface: *CoreSurface = @ptrFromInt(ptr_int);