diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 721486dd..6e4dc58a 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -50,6 +50,22 @@ jobs:
       - name: Build the native runtime and run cargo test
         run: bash Core/Portable/test.sh
 
+  dictionary:
+    name: Portable dictionary (cargo test)
+    runs-on: ubuntu-24.04
+    timeout-minutes: 30
+    steps:
+      - uses: actions/checkout@v5
+      - name: Cache the dictionary crate build
+        uses: actions/cache@v5
+        with:
+          path: build/dictionary-parity/cargo
+          key: dictionary-${{ runner.os }}-${{ hashFiles('Core/Portable/dictionary/Cargo.lock', 'rust-toolchain.toml') }}
+          restore-keys: dictionary-${{ runner.os }}-
+      # Without a Swift toolchain the script compares against the committed fixtures.
+      - name: Test and verify the dictionary generator port
+        run: bash Core/Portable/dictionary/test.sh
+
   scripts:
     name: Remote runner tests
     runs-on: ubuntu-24.04
diff --git a/Core/Portable/dictionary/src/spelling.rs b/Core/Portable/dictionary/src/spelling.rs
index 1203aba2..93a0ad74 100644
--- a/Core/Portable/dictionary/src/spelling.rs
+++ b/Core/Portable/dictionary/src/spelling.rs
@@ -3,7 +3,7 @@ use std::collections::{BTreeMap, BTreeSet};
 
 pub fn spelling(dictionary: &[u8]) -> Result<BTreeMap<String, Vec<u8>>> {
     let mut syllables = BTreeSet::new();
-    read_rows(dictionary, "generated-spelling", None, |key, _| {
+    read_rows(dictionary, "generated-spelling", |key, _| {
         syllables.extend(key.reading.split(' ').map(str::to_owned));
     })?;
     let mut schemas = BTreeMap::new();
diff --git a/Core/Tests/InkFlowEngineTestSupport/EngineRegression.swift b/Core/Tests/InkFlowEngineTestSupport/EngineRegression.swift
index 8e03766c..914af13e 100644
--- a/Core/Tests/InkFlowEngineTestSupport/EngineRegression.swift
+++ b/Core/Tests/InkFlowEngineTestSupport/EngineRegression.swift
@@ -281,7 +281,6 @@ package enum EngineRegression {
             check(fields.count == 4)
             selectCandidate(String(fields[0]), input: fields[1].replacingOccurrences(of: " ", with: ""), engine: engine)
         }
-        selectCandidate("串行打印机", input: "chuanxingdayinji", engine: engine)
         selectCandidate("深度求索", input: "shenduqiusuo", engine: engine)
         selectCandidate("阿米诺斯", input: "aminuosi", engine: engine)
         selectCandidate("并发信息系统", input: "bingfaxinxixitong", engine: engine)