diff --git a/UI/window-basic-main.cpp b/UI/window-basic-main.cpp
index 5164d3519..1832a1210 100644
--- a/UI/window-basic-main.cpp
+++ b/UI/window-basic-main.cpp
@@ -6715,6 +6715,15 @@ OBSProjector *OBSBasic::OpenProjector(obs_source_t *source, int monitor,
 	if (monitor > 9 || monitor > QGuiApplication::screens().size() - 1)
 		return nullptr;
 
+	if (monitor > -1) {
+		for (size_t i = 0; i < projectors.size(); i++) {
+			if (projectors[i]->GetMonitor() == monitor) {
+				DeleteProjector(projectors[i]);
+				break;
+			}
+		}
+	}
+
 	OBSProjector *projector =
 		new OBSProjector(nullptr, source, monitor, type);