diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 799c5a8c8b..4782088fcd 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -149,7 +149,7 @@ jobs:
             ${{ steps.get_package_info.outputs.rescript_package }}
             ${{ steps.get_package_info.outputs.stdlib_package }}
 
-  test:
+  installationTest:
     needs: package
     strategy:
       fail-fast: false
@@ -179,5 +179,6 @@ jobs:
         working-directory: packages/test
 
       - name: Test installation
-        run: npm test
+        run: npx rescript -h && npx rescript build && cat src/Test.bs.js
+        shell: bash
         working-directory: packages/test
diff --git a/jscomp/stubs/ext_basic_hash_stubs.c b/jscomp/stubs/ext_basic_hash_stubs.c
index ae451904ce..34e4133335 100644
--- a/jscomp/stubs/ext_basic_hash_stubs.c
+++ b/jscomp/stubs/ext_basic_hash_stubs.c
@@ -3,6 +3,7 @@
 #include <string.h>
 #include <stdint.h>
 #include "caml/memory.h"
+#include "caml/osdeps.h"
 #include "caml/signals.h"
 #include "caml/misc.h"
 #include <sys/stat.h>
diff --git a/packages/test/bsconfig.json b/packages/test/bsconfig.json
new file mode 100644
index 0000000000..3ae42bf353
--- /dev/null
+++ b/packages/test/bsconfig.json
@@ -0,0 +1,16 @@
+{
+  "name": "rescript-test",
+  "sources": [
+    {
+      "dir": "src",
+      "subdirs": true
+    }
+  ],
+  "package-specs": [
+    {
+      "module": "es6",
+      "in-source": true
+    }
+  ],
+  "suffix": ".bs.js"
+}
diff --git a/packages/test/package.json b/packages/test/package.json
index a267d0e4f2..31130847f5 100644
--- a/packages/test/package.json
+++ b/packages/test/package.json
@@ -1,7 +1,4 @@
 {
   "name": "rescript-test",
-  "version": "0.0.0",
-  "scripts": {
-    "test": "bsc Test.res"
-  }
+  "version": "0.0.0"
 }
diff --git a/packages/test/Test.res b/packages/test/src/Test.res
similarity index 100%
rename from packages/test/Test.res
rename to packages/test/src/Test.res