diff --git a/vlib/os/signal.v b/vlib/os/signal.v
index 08a2c2280e..bf98afa95d 100644
--- a/vlib/os/signal.v
+++ b/vlib/os/signal.v
@@ -40,4 +40,4 @@ pub enum Signal {
 	sys = 31
 }
 
-type SignalHandler = fn (Signal)
+pub type SignalHandler = fn (Signal)