diff --git a/src/main/java/io/ipfs/multihash/Multihash.java b/src/main/java/io/ipfs/multihash/Multihash.java
index 2fb6776..14f2451 100644
--- a/src/main/java/io/ipfs/multihash/Multihash.java
+++ b/src/main/java/io/ipfs/multihash/Multihash.java
@@ -240,7 +240,7 @@ public static Multihash decode(String encoded) {
 
     @Override
     public String toString() {
-        return toBase58();
+        return "Qm" + toBase58();
     }
 
     @Override