diff --git a/julcho.c b/julcho.c
index d9999ef..990d12e 100644
--- a/julcho.c
+++ b/julcho.c
@@ -203,7 +203,7 @@ static pHdbCallback MakeJulChoSetCallback(pJulCho driv, char *command,
     hdbCB->next = NULL;     
     hdbCB->previous = NULL;     
     hdbCB->id = 557;
-    hdbCB->internalID = -1;
+    hdbCB->internalID = NULL;
     hdbCB->killFunc = free;
     hdbCB->userCallback = JulChoSetCallback;
     hdbCB->userData = cbData;
@@ -751,7 +751,7 @@ static int ConfigureSingleJulCho(pHdb parent, pJulCho driv,
    child = parent->child;
    while(child != NULL){
         AppendHipadabaCallback(child,HCBREAD,
-            MakeHipadabaCallback(JulChoGetCallback,driv,NULL,-1,-1)); 
+            MakeHipadabaCallback(JulChoGetCallback,driv,NULL,-1,NULL)); 
         child = child->next;
    }
    return 1;     
@@ -1019,7 +1019,7 @@ static int JulChoGetPar(pCodri pDriv, char *parname,
     if(!UpdateJulChoParameters(self,testParGroup(parname))){
         return 0;
     }
-    val = formatValue(target->value);
+    val = formatValue(target->value, target);
     if(val == NULL){
         self->errorCode = NOMEM;
         return 0;