diff --git a/src/Neo4j.Berries.OGM/Contexts/GraphContext.cs b/src/Neo4j.Berries.OGM/Contexts/GraphContext.cs
index 4154960..45d78ee 100644
--- a/src/Neo4j.Berries.OGM/Contexts/GraphContext.cs
+++ b/src/Neo4j.Berries.OGM/Contexts/GraphContext.cs
@@ -112,7 +112,7 @@ private void ResetCreateCommands()
         }
     }
     
-    public string GetGeneratedCypher()
+    public string ShowGeneratedCypher()
     {
         try
         {
@@ -172,6 +172,8 @@ private static string BuildFinalQuery(string cypher, IDictionary<string, object>
 
     private static string FormatParameter(object value)
     {
+        if(value == null) return string.Empty;
+
         if (value is string strValue)
         {
             return $"'{strValue}'";