diff --git a/OSBindings/Mac/Clock SignalTests/ZexallTests.swift b/OSBindings/Mac/Clock SignalTests/ZexallTests.swift
index ddc0ba893..ce9c6f59d 100644
--- a/OSBindings/Mac/Clock SignalTests/ZexallTests.swift	
+++ b/OSBindings/Mac/Clock SignalTests/ZexallTests.swift	
@@ -155,6 +155,7 @@ class ZexallTests: XCTestCase, CSTestMachineTrapHandler {
 					default:
 						break
 				}
+				output += textToAppend
 				print(textToAppend)
 
 			case 0x0000: