diff --git a/src/js/index.js b/src/js/index.js
index 472d392..8caa0ed 100644
--- a/src/js/index.js
+++ b/src/js/index.js
@@ -240,7 +240,7 @@
         }
         phraseChangeTimeoutEvent = setTimeout(function() {
             phraseChanged();
-            var entropy = mnemonic.toRawEntropyHex(DOM.phrase.val());
+            var entropy = mnemonic.toRawEntropyBin(DOM.phrase.val());
             if (entropy !== null) {
                 DOM.entropyMnemonicLength.val("raw");
                 DOM.entropy.val(entropy);
diff --git a/src/js/jsbip39.js b/src/js/jsbip39.js
index 9a6e7ec..1e52d9d 100644
--- a/src/js/jsbip39.js
+++ b/src/js/jsbip39.js
@@ -130,6 +130,12 @@ var Mnemonic = function(language) {
         return h;
     }
 
+    self.toRawEntropyBin = function(mnemonic) {
+        var b = mnemonicToBinaryString(mnemonic);
+        var d = b.substring(0, b.length / 33 * 32);
+        return d;
+    }
+
     self.toSeed = function(mnemonic, passphrase) {
         passphrase = passphrase || '';
         mnemonic = self.joinWords(self.splitWords(mnemonic)); // removes duplicate blanks
diff --git a/tests/spec/tests.js b/tests/spec/tests.js
index 977294c..07918c2 100644
--- a/tests/spec/tests.js
+++ b/tests/spec/tests.js
@@ -4129,8 +4129,13 @@ fit('Converts mnemonics into raw entropy', function(done) {
         driver.findElement(By.css('.entropy'))
             .getAttribute("value")
             .then(function(entropy) {
-                expect(entropy).toBe("00000001");
-                done();
+                expect(entropy).toBe("00000000000000000000000000000001");
+                driver.findElement(By.css('.phrase'))
+                    .getAttribute("value")
+                    .then(function(phrase) {
+                        expect(phrase).toBe("abandon abandon about");
+                        done();
+                    });
             });
     });
 });