diff --git a/lib/CodeGen/MachineFunction.cpp b/lib/CodeGen/MachineFunction.cpp
index 221d67b..4dfd7f7 100644
--- a/lib/CodeGen/MachineFunction.cpp
+++ b/lib/CodeGen/MachineFunction.cpp
@@ -201,7 +201,7 @@
     if (i < NumFixedObjects)
       OS << " fixed";
     if (i < NumFixedObjects || SO.SPOffset != -1) {
-      int Off = SO.SPOffset + ValOffset;
+      int Off = SO.SPOffset - ValOffset;
       OS << " at location [SP";
       if (Off > 0)
 	OS << "+" << Off;