diff --git a/dist/trust-min.js b/dist/trust-min.js
index f885ee9c..2b9bb635 100644
--- a/dist/trust-min.js
+++ b/dist/trust-min.js
@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:3fe80a1f5c4051e72d46485f26a79001c6007380ee60a75abf38db760712d661
-size 535220
+oid sha256:6fa92304a0135af876702ecfe6a9582ff78c65f504289fc9bccd866ceba51017
+size 535161
diff --git a/src/index.js b/src/index.js
index c665c7d8..b7c6ca55 100644
--- a/src/index.js
+++ b/src/index.js
@@ -202,7 +202,7 @@ class TrustWeb3Provider extends EventEmitter {
 
   eth_sign(payload) {
     const buffer = Utils.messageToBuffer(payload.params[1]);
-    const hex = buffer.toString("hex");
+    const hex = Utils.bufferToHex(buffer);
     if (isUtf8(buffer)) {
       this.postMessage("signPersonalMessage", payload.id, {data: hex});
     } else {
@@ -215,7 +215,7 @@ class TrustWeb3Provider extends EventEmitter {
     const buffer = Utils.messageToBuffer(message);
     if (buffer.length === 0) {
       // hex it
-      const hex = Buffer.from(message).toString("hex");
+      const hex = Utils.bufferToHex(message);
       this.postMessage("signPersonalMessage", payload.id, {data: hex});
     } else {
       this.postMessage("signPersonalMessage", payload.id, {data: message});
diff --git a/src/utils.js b/src/utils.js
index 60a0293c..1c187641 100644
--- a/src/utils.js
+++ b/src/utils.js
@@ -51,7 +51,7 @@ class Utils {
   }
 
   static bufferToHex(buf) {
-    return Buffer.from(buf).toString("hex");
+    return "0x" + Buffer.from(buf).toString("hex");
   }
 }