diff --git a/reactos/lib/sdk/crt/except/arm/chkstk_ms.s b/reactos/lib/sdk/crt/except/arm/chkstk_ms.s
new file mode 100644
index 00000000000..ad0acf850bc
--- /dev/null
+++ b/reactos/lib/sdk/crt/except/arm/chkstk_ms.s
@@ -0,0 +1,30 @@
+/*
+ * COPYRIGHT:         See COPYING in the top level directory
+ * PROJECT:           ReactOS system libraries
+ * PURPOSE:           Implementation of _chkstk and _alloca_probe
+ * FILE:              lib/sdk/crt/except/arm/chkstk_ms.s
+ * PROGRAMMER:        Timo Kreuzer (timo.kreuzer@reactos.org)
+ *                    Yuntian Zhang (yuntian.zh@gmail.com)
+ */
+
+/* INCLUDES ******************************************************************/
+
+#include <kxarm.h>
+
+/* CODE **********************************************************************/
+    TEXTAREA
+
+MsgUnimplemented ASCII "Unimplemented", CR, LF, NUL
+
+    LEAF_ENTRY ___chkstk_ms
+    UNIMPLEMENTED chkstk_ms
+    bx lr
+    LEAF_END __chkstk_ms
+
+    LEAF_ENTRY __alloca_probe
+    UNIMPLEMENTED alloca_probe
+    bx lr
+    LEAF_END __alloca_probe
+
+    END
+/* EOF */