diff --git a/src/hostcalls.rs b/src/hostcalls.rs
index f1c47793..07d5b56f 100644
--- a/src/hostcalls.rs
+++ b/src/hostcalls.rs
@@ -416,6 +416,8 @@ pub fn get_property(path: Vec<&str>) -> Result<Option<Bytes>, Status> {
                 }
             }
             Status::NotFound => Ok(None),
+            Status::SerializationFailure => Err(Status::SerializationFailure),
+            Status::InternalFailure => Err(Status::InternalFailure),
             status => panic!("unexpected status: {}", status as u32),
         }
     }
diff --git a/src/types.rs b/src/types.rs
index cddb898f..444bdfef 100644
--- a/src/types.rs
+++ b/src/types.rs
@@ -44,6 +44,7 @@ pub enum Status {
     Ok = 0,
     NotFound = 1,
     BadArgument = 2,
+    SerializationFailure = 3,
     ParseFailure = 4,
     Empty = 7,
     CasMismatch = 8,