diff --git a/lib/pleroma/user.ex b/lib/pleroma/user.ex
index 81cec8265..59f6340b8 100644
--- a/lib/pleroma/user.ex
+++ b/lib/pleroma/user.ex
@@ -93,7 +93,7 @@ def update_changeset(struct, params \\ %{}) do
     |> cast(params, [:bio, :name])
     |> unique_constraint(:nickname)
     |> validate_format(:nickname, ~r/^[a-zA-Z\d]+$/)
-    |> validate_length(:bio, min: 1, max: 1000)
+    |> validate_length(:bio, max: 1000)
     |> validate_length(:name, min: 1, max: 100)
   end
 
@@ -119,13 +119,13 @@ def reset_password(user, data) do
   def register_changeset(struct, params \\ %{}) do
     changeset = struct
     |> cast(params, [:bio, :email, :name, :nickname, :password, :password_confirmation])
-    |> validate_required([:bio, :email, :name, :nickname, :password, :password_confirmation])
+    |> validate_required([:email, :name, :nickname, :password, :password_confirmation])
     |> validate_confirmation(:password)
     |> unique_constraint(:email)
     |> unique_constraint(:nickname)
     |> validate_format(:nickname, ~r/^[a-zA-Z\d]+$/)
     |> validate_format(:email, @email_regex)
-    |> validate_length(:bio, min: 1, max: 1000)
+    |> validate_length(:bio, max: 1000)
     |> validate_length(:name, min: 1, max: 100)
 
     if changeset.valid? do
diff --git a/test/user_test.exs b/test/user_test.exs
index 0c87b778c..6bfdfe1bf 100644
--- a/test/user_test.exs
+++ b/test/user_test.exs
@@ -101,13 +101,14 @@ test "test if a user is following another user" do
       email: "email@example.com"
     }
 
-    test "it requires a bio, email, name, nickname and password" do
+    test "it requires an email, name, nickname and password, bio is optional" do
       @full_user_data
       |> Map.keys
       |> Enum.each(fn (key) ->
         params = Map.delete(@full_user_data, key)
         changeset = User.register_changeset(%User{}, params)
-        assert changeset.valid? == false
+
+        assert (if key == :bio, do: changeset.valid?, else: not changeset.valid?)
       end)
     end