diff --git a/source/shared/core_results.cpp b/source/shared/core_results.cpp
index 67c82e0e..7c2b1bfd 100644
--- a/source/shared/core_results.cpp
+++ b/source/shared/core_results.cpp
@@ -911,6 +911,7 @@ SQLLEN sqlsrv_buffered_result_set::row_count( TSRMLS_D )
 		return zend_hash_num_elements( cache );
 	}
 	else {
+		// returning -1 to represent getting the rowcount of an empty result set
 		return -1;
 	}
 }