diff --git a/sdk/include/ddk/mrxfcb.h b/sdk/include/ddk/mrxfcb.h
index 93a63206594..746fd8adafe 100644
--- a/sdk/include/ddk/mrxfcb.h
+++ b/sdk/include/ddk/mrxfcb.h
@@ -213,4 +213,9 @@ NTAPI
 RxAcquireExclusiveFcbResourceInMRx(
     _Inout_ PMRX_FCB Fcb);
 
+VOID
+NTAPI
+RxReleaseFcbResourceInMRx(
+    _Inout_ PMRX_FCB pFcb);
+
 #endif
diff --git a/sdk/lib/drivers/rxce/rxce.c b/sdk/lib/drivers/rxce/rxce.c
index 5799a10f993..db5bd3f6120 100644
--- a/sdk/lib/drivers/rxce/rxce.c
+++ b/sdk/lib/drivers/rxce/rxce.c
@@ -186,6 +186,17 @@ RxAcquireExclusiveFcbResourceInMRx(
     return RxAcquireExclusiveFcb(NULL, (PFCB)Fcb);
 }
 
+/*
+ * @implemented
+ */
+VOID
+NTAPI
+RxReleaseFcbResourceInMRx(
+    _Inout_ PMRX_FCB pFcb)
+{
+    RxReleaseFcb(NULL, pFcb);
+}
+
 /*
  * @implemented
  */