diff --git a/bintree.c b/bintree.c
index 6379392..4391f2a 100644
--- a/bintree.c
+++ b/bintree.c
@@ -12,7 +12,6 @@
     * `nextTreeData`: Traversierung mit Hilfe des zuvor implementierten Stacks. Done */  
 
 
-    static TreeNode     *root       = NULL;
     static StackNode    *stackRoot  = NULL;
 
 
@@ -185,5 +184,7 @@ int treeSizeRec(const TreeNode *currentNode)
         nodeCount += treeSizeRec(currentNode->right);
         return nodeCount + 1;
     }
+
+    return nodeCount;
 }
 
diff --git a/bintree.o b/bintree.o
index 49eaac0..ef77d71 100644
Binary files a/bintree.o and b/bintree.o differ
diff --git a/runbintreeTests.exe b/runbintreeTests.exe
index 945294b..cd1d59f 100644
Binary files a/runbintreeTests.exe and b/runbintreeTests.exe differ