diff --git a/packages/fuel-indexer-lib/src/lib.rs b/packages/fuel-indexer-lib/src/lib.rs
index b401fc78f..5eb19735c 100644
--- a/packages/fuel-indexer-lib/src/lib.rs
+++ b/packages/fuel-indexer-lib/src/lib.rs
@@ -70,7 +70,7 @@ impl std::fmt::Display for WasmIndexerError {
     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
         match self {
             Self::SerializationError => {
-                write!(f, "Failed to serialize")
+                write!(f, "Failed to serialize object.")
             }
             Self::DeserializationError => {
                 write!(f, "Failed to deserialize object.")