diff --git a/lib/IR/Instructions.cpp b/lib/IR/Instructions.cpp
index 795e5fae5b9..761f60063fa 100644
--- a/lib/IR/Instructions.cpp
+++ b/lib/IR/Instructions.cpp
@@ -1083,7 +1083,7 @@ void StoreInst::AssertOK() {
                  cast<PointerType>(getOperand(1)->getType())->getElementType()
          && "Ptr must be a pointer to Val type!");
   assert(!(isAtomic() && getAlignment() == 0) &&
-         "Alignment required for atomic load");
+         "Alignment required for atomic store");
 }