diff --git a/src/becca/becca-interface.ts b/src/becca/becca-interface.ts
index e7298fff5..21892676d 100644
--- a/src/becca/becca-interface.ts
+++ b/src/becca/becca-interface.ts
@@ -137,10 +137,7 @@ export default class Becca {
         return branch;
     }
 
-    getAttribute(attributeId: string | null): BAttribute | null {
-        if (!attributeId) {
-            return null;
-        }
+    getAttribute(attributeId: string): BAttribute | null {
         return this.attributes[attributeId];
     }
 
diff --git a/src/routes/api/attributes.ts b/src/routes/api/attributes.ts
index 966c12078..e66906f37 100644
--- a/src/routes/api/attributes.ts
+++ b/src/routes/api/attributes.ts
@@ -208,7 +208,7 @@ function createRelation(req: Request) {
     const targetNoteId = req.params.targetNoteId;
     const name = req.params.name;
 
-    const attributeId = sql.getValue<string | null>(`SELECT attributeId FROM attributes WHERE isDeleted = 0 AND noteId = ? AND type = 'relation' AND name = ? AND value = ?`, [sourceNoteId, name, targetNoteId]);
+    const attributeId = sql.getValue<string>(`SELECT attributeId FROM attributes WHERE isDeleted = 0 AND noteId = ? AND type = 'relation' AND name = ? AND value = ?`, [sourceNoteId, name, targetNoteId]);
     let attribute = becca.getAttribute(attributeId);
 
     if (!attribute) {