diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index f348373..dd9505a 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -41,6 +41,7 @@ jobs:
         with:
           path: |
             **/node_modules
+            build
             .rdf-test-suite-cache
             .rdf-test-suite-ldf-cache
           key: ${{ runner.os }}-${{ runner.node-version }}-test-modules-${{ hashFiles('**/package-lock.json') }}
diff --git a/package.json b/package.json
index 9953165..14a806e 100644
--- a/package.json
+++ b/package.json
@@ -40,6 +40,7 @@
     "eslint": "^5.3.0",
     "mocha": "^6.2.2",
     "precommit-hook": "^3.0.0",
+    "replace-in-file": "^8.3.0",
     "should": "^13.1.0",
     "@comunica/utils-bindings-factory": "^4.0.2"
   },
diff --git a/replace-in-file.json b/replace-in-file.json
new file mode 100644
index 0000000..3e50602
--- /dev/null
+++ b/replace-in-file.json
@@ -0,0 +1,5 @@
+{
+  "files": "deps/libhdt/src/util/StopWatch.cpp",
+  "from": "uint64_t",
+  "to": "unsigned long long"
+}