diff --git a/src/RequestHandler/outofprocess/forwardinghandler.cpp b/src/RequestHandler/outofprocess/forwardinghandler.cpp
index ed96784210..3750fbf8de 100644
--- a/src/RequestHandler/outofprocess/forwardinghandler.cpp
+++ b/src/RequestHandler/outofprocess/forwardinghandler.cpp
@@ -38,6 +38,7 @@ FORWARDING_HANDLER::FORWARDING_HANDLER(
 {
     DebugPrintf(ASPNETCORE_DEBUG_FLAG_INFO,
         "FORWARDING_HANDLER::FORWARDING_HANDLER");
+    InitializeSRWLock(&m_RequestLock);
 }
 
 FORWARDING_HANDLER::~FORWARDING_HANDLER(
diff --git a/src/RequestHandler/outofprocess/websockethandler.cxx b/src/RequestHandler/outofprocess/websockethandler.cxx
index c64bbe4adb..08aea5bdfe 100644
--- a/src/RequestHandler/outofprocess/websockethandler.cxx
+++ b/src/RequestHandler/outofprocess/websockethandler.cxx
@@ -106,6 +106,8 @@ WEBSOCKET_HANDLER::StaticInitialize(
         sm_pTraceLog = CreateRefTraceLog( 10000, 0 );
     }
 
+    InitializeSRWLock(&sm_RequestsListLock);
+
     return S_OK;
 }