diff --git a/reactos/include/ndk/psfuncs.h b/reactos/include/ndk/psfuncs.h
index 8f259cb9b89..8718ae51bb3 100644
--- a/reactos/include/ndk/psfuncs.h
+++ b/reactos/include/ndk/psfuncs.h
@@ -116,6 +116,13 @@ PsGetThreadProcess(
     _In_ PETHREAD Thread
 );
 
+NTKERNELAPI
+ULONG
+NTAPI
+PsGetThreadFreezeCount(
+    _In_ PETHREAD Thread
+);
+
 NTKERNELAPI
 BOOLEAN
 NTAPI