diff --git a/src/cmd/go/internal/base/signal.go b/src/cmd/go/internal/base/signal.go
index 54d11876d07..05befcf7f0c 100644
--- a/src/cmd/go/internal/base/signal.go
+++ b/src/cmd/go/internal/base/signal.go
@@ -15,7 +15,7 @@ var Interrupted = make(chan struct{})
 
 // processSignals setups signal handler.
 func processSignals() {
-	sig := make(chan os.Signal)
+	sig := make(chan os.Signal, 1)
 	signal.Notify(sig, signalsToIgnore...)
 	go func() {
 		<-sig