diff --git a/gradle.properties b/gradle.properties
index 5b2a680..e35a6dd 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -1 +1 @@
-version=3.1.0
+version=3.1.1
diff --git a/src/main/java/fr/traqueur/recipes/impl/domains/recipes/RecipeBuilder.java b/src/main/java/fr/traqueur/recipes/impl/domains/recipes/RecipeBuilder.java
index 9ef8cdd..6727c51 100644
--- a/src/main/java/fr/traqueur/recipes/impl/domains/recipes/RecipeBuilder.java
+++ b/src/main/java/fr/traqueur/recipes/impl/domains/recipes/RecipeBuilder.java
@@ -97,7 +97,7 @@ public Recipe setResult(ItemStack result) {
         if(type == null) {
             throw new IllegalArgumentException("Recipe type is not set");
         }
-        this.result = Util.fromItemStack(result);
+        this.result = "base64:" + Util.fromItemStack(result);
         return this;
     }
 
diff --git a/src/main/resources/recipeapi.properties b/src/main/resources/recipeapi.properties
index fe5fb99..9f0d089 100644
--- a/src/main/resources/recipeapi.properties
+++ b/src/main/resources/recipeapi.properties
@@ -1 +1 @@
-version=3.1.0
\ No newline at end of file
+version=3.1.1
\ No newline at end of file