diff --git a/src/window.rs b/src/window.rs
index a694712..f57e9f5 100644
--- a/src/window.rs
+++ b/src/window.rs
@@ -171,6 +171,12 @@ mod imp {
                     None
                 }),
             );
+            document_signal_group.connect_notify_local(
+                Some("busy-progress"),
+                clone!(@weak obj => move |_, _| {
+                    obj.update_save_action();
+                }),
+            );
             self.document_signal_group
                 .set(document_signal_group)
                 .unwrap();
@@ -253,6 +259,8 @@ impl Window {
 
         let document_signal_group = imp.document_signal_group.get().unwrap();
         document_signal_group.set_target(Some(document));
+
+        self.update_save_action();
     }
 
     fn document(&self) -> Document {
@@ -474,6 +482,11 @@ impl Window {
 
         Ok(Some(texture))
     }
+
+    fn update_save_action(&self) {
+        let is_document_busy = self.document().is_busy();
+        self.action_set_enabled("win.save-document", !is_document_busy);
+    }
 }
 
 fn graphviz_file_filters() -> gio::ListStore {