diff --git a/apax.yml b/apax.yml
index ed6301e..6ca842b 100644
--- a/apax.yml
+++ b/apax.yml
@@ -17,7 +17,7 @@ targets:
   - 'axunit-llvm'
 # Dependencies
 devDependencies:
-  "@ax/sdk": 3.0.2
+  "@ax/sdk": 3.0.8
   "@simatic-ax/snippetscollection": 0.0.15
 dependencies:
   "@ax/system-strings": 4.1.43
diff --git a/docs/JsonObject.md b/docs/JsonObject.md
index 9a530ad..7ccc7e3 100644
--- a/docs/JsonObject.md
+++ b/docs/JsonObject.md
@@ -9,7 +9,7 @@ Inheritance: AbstractJsonElement-->JsonObject
 |||
 |-|-|
 |value : DINT;| Value of this element
-|key : STRING  := 'NoKeySet';| Key of this element
+|key : STRING  := '';| Key of this element
 
 ## Methods
 
diff --git a/src/Document/JsonDocument.st b/src/Document/JsonDocument.st
index a65c46b..8ec12a0 100644
--- a/src/Document/JsonDocument.st
+++ b/src/Document/JsonDocument.st
@@ -145,7 +145,7 @@ NAMESPACE Simatic.Ax.Json
         {axcode:docs-v0:@simatic-ax/json:JsonDocument.md}
         METHOD PUBLIC ClearBuffer
             VAR_INPUT
-                hard : BOOL := FALSE;
+                hard : BOOL;
             END_VAR
             VAR_TEMP
                 i : DINT;
diff --git a/src/Elements/AbstractJsonElement.st b/src/Elements/AbstractJsonElement.st
index 50c392e..aea62ae 100644
--- a/src/Elements/AbstractJsonElement.st
+++ b/src/Elements/AbstractJsonElement.st
@@ -4,7 +4,7 @@ USING Simatic.Ax.Json;
 NAMESPACE Simatic.Ax.Json
     CLASS ABSTRACT AbstractJsonElement IMPLEMENTS IJsonElementMuteable, IJsonElement
         VAR PUBLIC
-            Key : STRING  := 'NoKeySet';                    
+            Key : STRING;                    
         END_VAR
 
         VAR PROTECTED