diff --git a/examples/src/bin/image.rs b/examples/src/bin/image.rs
index 82ab1d11d..a4823065f 100644
--- a/examples/src/bin/image.rs
+++ b/examples/src/bin/image.rs
@@ -188,7 +188,7 @@ fn main() {
             .build().unwrap();
 
         let future = future
-            .then_execute(queue.clone(), cb)
+            .then_execute(queue.clone(), cb).unwrap()
             .then_swapchain_present(queue.clone(), swapchain.clone(), image_num)
             .then_signal_fence_and_flush().unwrap();
         submissions.push(Box::new(future) as Box<_>);
diff --git a/examples/src/bin/teapot.rs b/examples/src/bin/teapot.rs
index a08c669b3..c42d35217 100644
--- a/examples/src/bin/teapot.rs
+++ b/examples/src/bin/teapot.rs
@@ -194,7 +194,7 @@ fn main() {
             .build().unwrap();
         
         let future = future
-            .then_execute(queue.clone(), command_buffer)
+            .then_execute(queue.clone(), command_buffer).unwrap()
             .then_swapchain_present(queue.clone(), swapchain.clone(), image_num)
             .then_signal_fence_and_flush().unwrap();
         submissions.push(Box::new(future) as Box<_>);
diff --git a/examples/src/bin/triangle.rs b/examples/src/bin/triangle.rs
index f8ddc6ce8..8dcdc14f8 100644
--- a/examples/src/bin/triangle.rs
+++ b/examples/src/bin/triangle.rs
@@ -405,7 +405,7 @@ fn main() {
             .build().unwrap();
 
         let future = future
-            .then_execute(queue.clone(), command_buffer)
+            .then_execute(queue.clone(), command_buffer).unwrap()
 
             // The color output is now expected to contain our triangle. But in order to show it on
             // the screen, we have to *present* the image by calling `present`.