diff --git a/Ghidra/Processors/x86/data/languages/x86-64-win.cspec b/Ghidra/Processors/x86/data/languages/x86-64-win.cspec
index c5b7fa2760..d4813f1dd2 100644
--- a/Ghidra/Processors/x86/data/languages/x86-64-win.cspec
+++ b/Ghidra/Processors/x86/data/languages/x86-64-win.cspec
@@ -163,6 +163,7 @@
     <target name="_alloca_probe2"/>
     <target name="__chkstk"/>
     <target name="__chkstk2"/>
+    <target name="___chkstk_ms"/>
     <pcode>
      <body><![CDATA[
        RSP = RSP + 0;