diff --git a/Cargo.toml b/Cargo.toml
index 47422a9..3e266fe 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -87,13 +87,13 @@ serde_json = "1.0"
 encoding = "0.2"
 kstring = "1.0"
 typed-arena = "2.0.1"
+maplit = "1.0"
 
 [dev-dependencies]
 assert_fs = "1.0"
 assert_cmd = "2.0"
 predicates = "2.0"
 criterion = "0.3"
-maplit = "1.0"
 
 [profile.dev]
 panic = "abort"
diff --git a/src/config.rs b/src/config.rs
index 6fcf1e7..ae099da 100644
--- a/src/config.rs
+++ b/src/config.rs
@@ -182,6 +182,13 @@ impl TypeEngineConfig {
                 // From a spell-check perspective, these are more closely related to Rust than Toml
                 extend_glob: vec!["Cargo.toml".into()],
                 engine: EngineConfig {
+                    dict: Some(DictConfig {
+                        extend_words: maplit::hashmap! {
+                            "flate".into() => "flate".into(),
+                            "ser".into() => "ser".into(),
+                        },
+                        ..Default::default()
+                    }),
                     ..Default::default()
                 },
             });