diff --git a/src/gui/src/MainWindow.cpp b/src/gui/src/MainWindow.cpp
index d60852c82..76909e461 100644
--- a/src/gui/src/MainWindow.cpp
+++ b/src/gui/src/MainWindow.cpp
@@ -917,6 +917,9 @@ bool MainWindow::isServiceRunning(QString name)
 	array[length] = '\0';
 
 	hService = OpenService(hSCManager, array, SERVICE_QUERY_STATUS);
+
+	delete[] array;
+
 	if (hService == NULL) {
 		appendLogNote("failed to open " + name + "service, error: " +
 			GetLastError());