diff --git a/objdiff-gui/src/views/function_diff.rs b/objdiff-gui/src/views/function_diff.rs
index 168ed7e..9734c7e 100644
--- a/objdiff-gui/src/views/function_diff.rs
+++ b/objdiff-gui/src/views/function_diff.rs
@@ -149,6 +149,10 @@ fn ins_hover_ui(
                 ui.colored_label(appearance.highlight_color, "Extern".to_string());
             }
         }
+
+        if let Some(demangled) = rlwinmdec::decode(&ins.formatted) {
+            ui.colored_label(appearance.highlight_color, &demangled);
+        }
     });
 }