diff --git a/include/llvm-c/Error.h b/include/llvm-c/Error.h
index 6a5ba877eb7..71e84661222 100644
--- a/include/llvm-c/Error.h
+++ b/include/llvm-c/Error.h
@@ -47,6 +47,8 @@ void LLVMConsumeError(LLVMErrorRef Err);
 /**
  * Returns the given string's error message. This operation consumes the error,
  * and the given LLVMErrorRef value is not usable once this call returns.
+ * The caller is responsible for disposing of the string by calling
+ * LLVMDisposeErrorMessage.
  */
 char *LLVMGetErrorMessage(LLVMErrorRef Err);