diff --git a/src/common/webrequest_curl.cpp b/src/common/webrequest_curl.cpp
index 16527faf2f..5a6208c6f9 100644
--- a/src/common/webrequest_curl.cpp
+++ b/src/common/webrequest_curl.cpp
@@ -356,8 +356,8 @@ wxWebSessionCURL::~wxWebSessionCURL()
 {
     {
         // Notify the work thread
-        m_shuttingDown = true;
         wxMutexLocker lock(m_mutex);
+        m_shuttingDown = true;
         m_condition.Signal();
     }