diff --git a/src/instrument.js b/src/instrument.js
index 7195979a..3b6d5678 100644
--- a/src/instrument.js
+++ b/src/instrument.js
@@ -77,7 +77,7 @@ function computeNextEntry(reducer, action, state, error) {
       // In Chrome, rethrowing provides better source map support
       setTimeout(() => { throw err; });
     } else {
-      console.error(err.stack || err);
+      console.error(err);
     }
   }
 
diff --git a/test/instrument.spec.js b/test/instrument.spec.js
index c8abc4af..1c0ac858 100644
--- a/test/instrument.spec.js
+++ b/test/instrument.spec.js
@@ -169,7 +169,7 @@ describe('instrument', () => {
     expect(computedStates[3].error).toMatch(
       /Interrupted by an error up the chain/
     );
-    expect(spy.calls[0].arguments[0]).toMatch(
+    expect(spy.calls[0].arguments[0].toString()).toMatch(
       /ReferenceError/
     );