diff --git a/eyre/src/macros.rs b/eyre/src/macros.rs
index 032f82a..4820b28 100644
--- a/eyre/src/macros.rs
+++ b/eyre/src/macros.rs
@@ -51,13 +51,13 @@
 #[macro_export]
 macro_rules! bail {
     ($msg:literal $(,)?) => {
-        return $crate::private::Err($crate::eyre!($msg));
+        return $crate::private::Err($crate::eyre!($msg).into());
     };
     ($err:expr $(,)?) => {
-        return $crate::private::Err($crate::eyre!($err));
+        return $crate::private::Err($crate::eyre!($err).into());
     };
     ($fmt:expr, $($arg:tt)*) => {
-        return $crate::private::Err($crate::eyre!($fmt, $($arg)*));
+        return $crate::private::Err($crate::eyre!($fmt, $($arg)*).into());
     };
 }
 
@@ -114,17 +114,17 @@ macro_rules! ensure {
     };
     ($cond:expr, $msg:literal $(,)?) => {
         if !$cond {
-            return $crate::private::Err($crate::eyre!($msg));
+            return $crate::private::Err($crate::eyre!($msg).into());
         }
     };
     ($cond:expr, $err:expr $(,)?) => {
         if !$cond {
-            return $crate::private::Err($crate::eyre!($err));
+            return $crate::private::Err($crate::eyre!($err).into());
         }
     };
     ($cond:expr, $fmt:expr, $($arg:tt)*) => {
         if !$cond {
-            return $crate::private::Err($crate::eyre!($fmt, $($arg)*));
+            return $crate::private::Err($crate::eyre!($fmt, $($arg)*).into());
         }
     };
 }
diff --git a/eyre/tests/test_macros.rs b/eyre/tests/test_macros.rs
index 41d3ddb..9fddd8a 100644
--- a/eyre/tests/test_macros.rs
+++ b/eyre/tests/test_macros.rs
@@ -40,7 +40,8 @@ fn test_ensure() {
     };
     assert!(f().is_err());
 
-    let f = || {
+    // Tests single-argument `ensure!`
+    let f = || -> Result<()> {
         ensure!(v + v == 1);
         Ok(())
     };
@@ -48,6 +49,24 @@ fn test_ensure() {
         f().unwrap_err().to_string(),
         "Condition failed: `v + v == 1`",
     );
+
+    // Tests automatically converting to external errors with ensure!()
+    let f = || -> Result<(), SomeWrappingErr> {
+        ensure!(false, "this will fail");
+        Ok(())
+    };
+    assert!(f().is_err());
+}
+
+#[allow(dead_code)]
+struct SomeWrappingErr {
+    err: eyre::Error,
+}
+
+impl From<eyre::Error> for SomeWrappingErr {
+    fn from(err: eyre::Error) -> Self {
+        SomeWrappingErr { err }
+    }
 }
 
 #[test]