diff --git a/crates/solvers-dto/src/lib.rs b/crates/solvers-dto/src/lib.rs
index 9606b4b0f1..96b86c27d5 100644
--- a/crates/solvers-dto/src/lib.rs
+++ b/crates/solvers-dto/src/lib.rs
@@ -32,7 +32,7 @@ mod serialize {
                 {
                     if !s.starts_with("0x") {
                         return Err(de::Error::custom(format!(
-                            "failed to decode {s:?} as a hex string: missing \"0x\" prefix",
+                            "failed to decode {s:?} as a hex string: missing \"0x\" prefix 1",
                         )));
                     }
                     hex::decode(&s[2..]).map_err(|err| {