diff --git a/src/android/mod.rs b/src/android/mod.rs
index fd0a85749..8bc82ceb0 100644
--- a/src/android/mod.rs
+++ b/src/android/mod.rs
@@ -281,7 +281,7 @@ pub struct WindowProxy;
 
 impl WindowProxy {
     pub fn wakeup_event_loop(&self) {
-        // TODO
+        unimplemented!()
     }
 }
 
diff --git a/src/win32/mod.rs b/src/win32/mod.rs
index 099c12623..978e3b5df 100644
--- a/src/win32/mod.rs
+++ b/src/win32/mod.rs
@@ -89,7 +89,7 @@ pub struct WindowProxy;
 
 impl WindowProxy {
     pub fn wakeup_event_loop(&self) {
-        // TODO
+        unimplemented!()
     }
 }