diff --git a/src/plugins/qnx/qnxrunconfiguration.cpp b/src/plugins/qnx/qnxrunconfiguration.cpp
index 42a33bb0e40..d6700fe202e 100644
--- a/src/plugins/qnx/qnxrunconfiguration.cpp
+++ b/src/plugins/qnx/qnxrunconfiguration.cpp
@@ -73,8 +73,8 @@ Utils::Environment QnxRunConfiguration::environment() const
                         m_qtLibPath + QLatin1String("/qml:$QML2_IMPORT_PATH"));
         env.appendOrSet(QLatin1String("QT_PLUGIN_PATH"),
                         m_qtLibPath + QLatin1String("/plugins:$QT_PLUGIN_PATH"));
-        env.appendOrSet(QLatin1String("QT_QPA_FONTDIR"),
-                        m_qtLibPath + QLatin1String("/lib/fonts:$QT_QPA_FONTDIR"));
+        env.set(QLatin1String("QT_QPA_FONTDIR"),
+                        m_qtLibPath + QLatin1String("/lib/fonts"));
     }
 
     return env;