diff --git a/vpd-parser/isdimm_vpd_parser.hpp b/vpd-parser/isdimm_vpd_parser.hpp
index 69ae2c5..c8105f4 100644
--- a/vpd-parser/isdimm_vpd_parser.hpp
+++ b/vpd-parser/isdimm_vpd_parser.hpp
@@ -84,9 +84,11 @@
      * @brief This function allocates FRU number based on part number
      *
      * @param[in] partNumber - part number of the DIMM
+     * @param[in] iterator - iterator to buffer containing SPD
      * @return allocated FRU number.
      */
-    auto getDDR4FruNumber(const std::string& partNumber);
+    auto getDDR4FruNumber(const std::string& partNumber,
+                          Binary::const_iterator& iterator);
 
     /**
      * @brief This function allocates CCIN based on part number