diff --git a/sdk/src/types/api/core.rs b/sdk/src/types/api/core.rs
index f273dba7e8..ea8b859d6c 100644
--- a/sdk/src/types/api/core.rs
+++ b/sdk/src/types/api/core.rs
@@ -4,6 +4,7 @@
 use alloc::{
     boxed::Box,
     collections::{BTreeMap, BTreeSet},
+    format,
     string::String,
     vec::Vec,
 };