diff --git a/include/leveldb/status.h b/include/leveldb/status.h
index d2bdc22..d9575f9 100644
--- a/include/leveldb/status.h
+++ b/include/leveldb/status.h
@@ -63,6 +63,9 @@ class Status {
   // Returns true iff the status indicates a NotSupportedError.
   bool IsNotSupportedError() const { return code() == kNotSupported; }
 
+  // Returns true iff the status indicates an InvalidArgument.
+  bool IsInvalidArgument() const { return code() == kInvalidArgument; }
+
   // Return a string representation of this status suitable for printing.
   // Returns the string "OK" for success.
   std::string ToString() const;