diff --git a/lib/connections/quic_unsupported.go b/lib/connections/quic_unsupported.go
index f293a6bc0..5dc555c29 100644
--- a/lib/connections/quic_unsupported.go
+++ b/lib/connections/quic_unsupported.go
@@ -9,6 +9,10 @@
 
 package connections
 
+import (
+	"fmt"
+)
+
 var errNotInBuild = fmt.Errorf("%w: disabled at build time", errUnsupported)
 
 func init() {