diff --git a/IDE/src/TestManager.bf b/IDE/src/TestManager.bf
index f98d28ba..32e83435 100644
--- a/IDE/src/TestManager.bf
+++ b/IDE/src/TestManager.bf
@@ -51,7 +51,7 @@ namespace IDE
 		public int mProjectInfoIdx = -1;
 		public TestInstance mTestInstance ~ delete _;
 		public List<ProjectInfo> mProjectInfos = new .() ~ DeleteContainerAndItems!(_);
-		public List<String> mQueuedOutput = new .() ~ DeleteContainerAndItems!(_);
+		public Queue<String> mQueuedOutput = new .() ~ DeleteContainerAndItems!(_);
 		public Monitor mMonitor = new Monitor() ~ delete _;
 		public String mPrevConfigName ~ delete _;
 		public bool mDebug;