diff --git a/android/bazel_handler.go b/android/bazel_handler.go
index 415f00e8e..9cd9fadfe 100644
--- a/android/bazel_handler.go
+++ b/android/bazel_handler.go
@@ -441,7 +441,7 @@ phony_root(name = "phonyroot",
 		case "arm":
 			deps_arm = append(deps_arm, labelString)
 		default:
-			panic(fmt.Sprintf("unhandled architecture %s for %s", getArchString(val), val))
+			panic(fmt.Sprintf("unhandled architecture %s for %v", getArchString(val), val))
 		}
 	}