diff --git a/techtree-manager/src/collect.rs b/techtree-manager/src/collect.rs
index 4b06f6e..c580db4 100644
--- a/techtree-manager/src/collect.rs
+++ b/techtree-manager/src/collect.rs
@@ -1,5 +1,4 @@
 use anyhow::Context as _;
-use std::collections::BTreeMap;
 
 /// Read all issues to generate the full techtree
 pub async fn collect_tree(
@@ -66,9 +65,9 @@ pub async fn collect_tree(
             let dep_number = dep.number.context("Missing issue number in dependency")?;
             if !tree.find_element_by_issue_number(dep_number).is_some() {
                 log::warn!("Found dependency from #{issue} on non-tracked issue #{dep_number}!");
+            } else {
+                tree.add_dependency_by_issue_number(issue, dep_number);
             }
-
-            tree.add_dependency_by_issue_number(issue, dep_number);
         }
     }