diff --git a/gpt4all-chat/modellist.cpp b/gpt4all-chat/modellist.cpp
index 642b0188..76916b11 100644
--- a/gpt4all-chat/modellist.cpp
+++ b/gpt4all-chat/modellist.cpp
@@ -146,6 +146,7 @@ void ModelInfo::setGpuLayers(int l)
 
 int ModelInfo::maxGpuLayers() const
 {
+    if (!installed) return -1;
     if (isOnline) return -1;
     if (m_maxGpuLayers != -1) return m_maxGpuLayers;
     auto path = (dirpath + filename()).toStdString();