diff --git a/core/src/command.rs b/core/src/command.rs
index 1172976f..e7885fb8 100644
--- a/core/src/command.rs
+++ b/core/src/command.rs
@@ -65,9 +65,12 @@ impl<T> Command<T> {
     /// Once this command is run, all the commands will be exectued at once.
     ///
     /// [`Command`]: struct.Command.html
-    pub fn batch(commands: impl Iterator<Item = Command<T>>) -> Self {
+    pub fn batch(commands: impl IntoIterator<Item = Command<T>>) -> Self {
         Self {
-            futures: commands.flat_map(|command| command.futures).collect(),
+            futures: commands
+                .into_iter()
+                .flat_map(|command| command.futures)
+                .collect(),
         }
     }
 
diff --git a/core/src/subscription.rs b/core/src/subscription.rs
index 8de6cae8..d9e7e388 100644
--- a/core/src/subscription.rs
+++ b/core/src/subscription.rs
@@ -50,10 +50,11 @@ where
     ///
     /// [`Subscription`]: struct.Subscription.html
     pub fn batch(
-        subscriptions: impl Iterator<Item = Subscription<H, I, O>>,
+        subscriptions: impl IntoIterator<Item = Subscription<H, I, O>>,
     ) -> Self {
         Self {
             recipes: subscriptions
+                .into_iter()
                 .flat_map(|subscription| subscription.recipes)
                 .collect(),
         }
diff --git a/native/src/user_interface.rs b/native/src/user_interface.rs
index 85b25bc7..53b36240 100644
--- a/native/src/user_interface.rs
+++ b/native/src/user_interface.rs
@@ -176,7 +176,7 @@ where
         &mut self,
         renderer: &Renderer,
         clipboard: Option<&dyn Clipboard>,
-        events: impl Iterator<Item = Event>,
+        events: impl IntoIterator<Item = Event>,
     ) -> Vec<Message> {
         let mut messages = Vec::new();