diff --git a/llvm/include/llvm-c/Error.h b/llvm/include/llvm-c/Error.h
index 00714ec..6a5ba87 100644
--- a/llvm/include/llvm-c/Error.h
+++ b/llvm/include/llvm-c/Error.h
@@ -18,6 +18,8 @@
 extern "C" {
 #endif
 
+#define LLVMErrorSuccess 0
+
 /**
  * Opaque reference to an error instance. Null serves as the 'success' value.
  */