diff --git a/test/proxy_spec.js b/test/proxy_spec.js
index 50fe3df0..1b6a59b9 100644
--- a/test/proxy_spec.js
+++ b/test/proxy_spec.js
@@ -216,7 +216,9 @@ describe("Proxy Tests", function() {
     };
     expect(() => {
       const cp = new ConfigurableProxy(options);
-    }).toThrow(new Error("Cannot find module 'mybackend'"));
+    }).toThrowMatching(function(thrown) {
+      return thrown.message.includes("Cannot find module");
+    });
     done();
   });