diff --git a/src/main.rs b/src/main.rs
index f295363aa..274d7735c 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -8,6 +8,7 @@ use librustdesk::*;
 #[cfg(any(target_os = "android", target_os = "ios", feature = "flutter"))]
 fn main() {
     if !common::global_init() {
+        eprintln!("Global initialization failed.");
         return;
     }
     common::test_rendezvous_server();