diff --git a/reactos/subsystems/csr/csrsrv/api.c b/reactos/subsystems/csr/csrsrv/api.c
index db495091520..ec34ca538cd 100644
--- a/reactos/subsystems/csr/csrsrv/api.c
+++ b/reactos/subsystems/csr/csrsrv/api.c
@@ -720,7 +720,7 @@ CsrApiRequestThread(IN PVOID Parameter)
         }
 
         /* We got an API Request */
-        CsrDereferenceThread(CsrThread);
+        CsrLockedReferenceThread(CsrThread);
         CsrReleaseProcessLock();
 
         /* This is an API call, get the Server ID */