diff --git a/cv8/program.c b/cv8/program.c
index 3bfaa8b..ca76ed9 100644
--- a/cv8/program.c
+++ b/cv8/program.c
@@ -74,7 +74,7 @@ struct tree* find_minimum(struct tree *root){
 }
 
 
-void tree* destroy_tree(struct tree* root){
+void destroy_tree(struct tree* root){
     if(root == NULL) return;
      
     /*if(root->left == NULL && root->right == NULL){