diff --git a/internal/deephash/deephash.go b/internal/deephash/deephash.go
index c162fbdc4..d1a5a8687 100644
--- a/internal/deephash/deephash.go
+++ b/internal/deephash/deephash.go
@@ -114,7 +114,7 @@ func print(w *bufio.Writer, v reflect.Value, visited map[uintptr]bool) (acyclic
 				x := v.Interface().(tailcfg.DiscoKey)
 				w.Write(x[:])
 			}
-			return
+			return true
 		}
 	}