diff --git a/bin_byte/dune b/bin_byte/dune
new file mode 100644
index 0000000..9bc3027
--- /dev/null
+++ b/bin_byte/dune
@@ -0,0 +1,12 @@
+(executable
+    (name test_glfw_byte)
+    (preprocess (pps lwt_ppx))
+    (modes byte)
+    (public_name test_glfw_byte)
+    (libraries
+        lwt
+        lwt.unix
+        reglm
+        EsyGlfwExamples
+        reglfw
+            ))
diff --git a/bin_byte/test_glfw_byte.re b/bin_byte/test_glfw_byte.re
new file mode 100644
index 0000000..2f1dfe9
--- /dev/null
+++ b/bin_byte/test_glfw_byte.re
@@ -0,0 +1,3 @@
+open EsyGlfwExamples;
+
+Lwt_main.run(Basic.run());
diff --git a/package.json b/package.json
index 9fbb995..54ec645 100644
--- a/package.json
+++ b/package.json
@@ -21,7 +21,13 @@
     ],
     "install": [
       "esy-installer"
-    ]
+    ],
+    "exportedEnv": {
+      "CAML_LD_LIBRARY_PATH": {
+        "val": "#{self.lib / 'reason-glfw' : $CAML_LD_LIBRARY_PATH}",
+	"scope": "global"
+      }
+    }
   },
   "peerDependencies": {
     "ocaml": "^4.6.0"