1 files changed, 5 insertions, 1 deletions
diff --git a/src/vm/eetwain.cpp b/src/vm/eetwain.cpp
index 5df7b6305a..dbbfac9000 100644
--- a/src/vm/eetwain.cpp
+++ b/src/vm/eetwain.cpp
@@ -18,6 +18,7 @@
 #include "gcinfodecoder.h"
 #endif
 
+#include "argdestination.h"
 
 #define X86_INSTR_W_TEST_ESP            0x4485  // test [esp+N], eax
 #define X86_INSTR_TEST_ESP_SIB          0x24
@@ -4071,7 +4072,10 @@ void promoteVarArgs(PTR_BYTE argsStart, PTR_VASigCookie varArgSig, GCCONTEXT* ct
         // if skipFixedArgs is false we report all arguments
         //  otherwise we just report the varargs.
         if (!skipFixedArgs || inVarArgs)
-            msig.GcScanRoots(pFrameBase + argOffset, ctx->f, ctx->sc);
+        {
+            ArgDestination argDest(pFrameBase, argOffset, argit.GetArgLocDescForStructInRegs());
+            msig.GcScanRoots(&argDest, ctx->f, ctx->sc);
+        }
     }
 }