diff --git a/lldb/include/lldb/Core/StructuredDataImpl.h b/lldb/include/lldb/Core/StructuredDataImpl.h
--- a/lldb/include/lldb/Core/StructuredDataImpl.h
+++ b/lldb/include/lldb/Core/StructuredDataImpl.h
@@ -69,6 +69,11 @@
     }
 
     // Grab the plugin.
+    if (m_plugin_wp.expired()) {
+      error.SetErrorString("Cannot pretty print structured data: "
+                           "plugin is expired.");
+      return error;    
+    }
     auto plugin_sp = lldb::StructuredDataPluginSP(m_plugin_wp);
     if (!plugin_sp) {
       error.SetErrorString("Cannot pretty print structured data: "