diff --git a/src/libs/3rdparty/libptyqt/ptyqt.cpp b/src/libs/3rdparty/libptyqt/ptyqt.cpp
index 3883395e22d..b3e7aa1b164 100644
--- a/src/libs/3rdparty/libptyqt/ptyqt.cpp
+++ b/src/libs/3rdparty/libptyqt/ptyqt.cpp
@@ -34,7 +34,7 @@ IPtyProcess *PtyQt::createPtyProcess(IPtyProcess::PtyType ptyType)
     }
 
 #ifdef Q_OS_WIN
-    if (ConPtyProcess().isAvailable())
+    if (ConPtyProcess().isAvailable() && qgetenv("QTC_USE_WINPTY").isEmpty())
         return new ConPtyProcess();
     else
         return new WinPtyProcess();