diff --git a/bintree.c b/bintree.c
index 0f2f187..2cf83f8 100644
--- a/bintree.c
+++ b/bintree.c
@@ -24,7 +24,7 @@
     TreeNode        *addToTreeRec   (TreeNode *currentNode, TreeNode *newNode, CompareFctType compareFct, int *isDuplicate, const int root);
     void            clearTreeRec    (TreeNode *currentNode);
     void            clearNode       (TreeNode *node);
-    void            treeSizeRec     (const TreeNode *currentNode, unsigned int *nodeCount);
+    int             treeSizeRec     (const TreeNode *currentNode);
 
 
 // Adds a copy of data's pointer destination to the tree using compareFct for ordering. Accepts duplicates
@@ -134,19 +134,23 @@ unsigned int treeSize(const TreeNode *root)
     unsigned int amountOfNodes = 0;
 
     
-    treeSizeRec(root, &amountOfNodes);
+    amountOfNodes = treeSizeRec(root);
 
 
     return amountOfNodes;
 }
 
-void treeSizeRec(const TreeNode *currentNode, unsigned int *nodeCount)
+
+int treeSizeRec(const TreeNode *currentNode)
 {
+    int nodeCount = 0;
+
+
     if (currentNode != NULL)
     {
-        treeSizeRec(currentNode->left, nodeCount);
-        *nodeCount++;
-        treeSizeRec(currentNode->right, nodeCount);
+        nodeCount += treeSizeRec(currentNode->left);
+        nodeCount += treeSizeRec(currentNode->right);
+        return nodeCount + 1;
     }
 }
 
diff --git a/bintree.o b/bintree.o
index 96c8f39..48f3a9c 100644
Binary files a/bintree.o and b/bintree.o differ
diff --git a/bintreeTests.c b/bintreeTests.c
index eddc237..c187aaf 100644
--- a/bintreeTests.c
+++ b/bintreeTests.c
@@ -163,7 +163,6 @@ void test_treeSizeWorkingLikeExpected(void)
     testRoot = addToTree(testRoot, &score5, sizeof(int), compareIntEntries, NULL);
     testRoot = addToTree(testRoot, &score6, sizeof(int), compareIntEntries, NULL);
     testRoot = addToTree(testRoot, &score7, sizeof(int), compareIntEntries, NULL);
-    testRoot = addToTree(testRoot, &score4, sizeof(int), compareIntEntries, NULL);
 
     testTreeSize = treeSize(testRoot);
 
@@ -182,7 +181,7 @@ int main()
     RUN_TEST(test_addToTreeExpandsTreeCorrectly);
     // RUN_TEST(test_nextTreeDataReturnsNextDataCorrectly);
     RUN_TEST(test_clearTreeworksLikeExpected);
-    // RUN_TEST(test_treeSizeWorkingLikeExpected);
+    RUN_TEST(test_treeSizeWorkingLikeExpected);
 
     return UNITY_END();
 }
diff --git a/runbintreeTests.exe b/runbintreeTests.exe
index 13bdb19..6e09e24 100644
Binary files a/runbintreeTests.exe and b/runbintreeTests.exe differ