diff --git a/backend/src/s9pk/reader.rs b/backend/src/s9pk/reader.rs
index eefc4ae63..fe6bb7b42 100644
--- a/backend/src/s9pk/reader.rs
+++ b/backend/src/s9pk/reader.rs
@@ -231,6 +231,16 @@ impl<R: AsyncRead + AsyncSeek + Unpin + Send + Sync> S9pkReader<R> {
             &validated_image_ids,
         )?;
 
+        #[cfg(feature = "js_engine")]
+        if man.containers.is_some()
+            || matches!(man.main, crate::procedure::PackageProcedure::Script(_))
+        {
+            return Err(Error::new(
+                eyre!("Right now we don't support the containers and the long running main"),
+                crate::ErrorKind::ValidateS9pk,
+            ));
+        }
+
         if man.containers.is_some()
             && matches!(man.main, crate::procedure::PackageProcedure::Docker(_))
         {