diff --git a/internal/datastore/memdb/memdb.go b/internal/datastore/memdb/memdb.go
index 1e48ab3aa2..e23a7f3560 100644
--- a/internal/datastore/memdb/memdb.go
+++ b/internal/datastore/memdb/memdb.go
@@ -27,7 +27,7 @@ const (
 	numAttempts              = 10
 )
 
-var errSerialization = errors.New("serialization error")
+var ErrSerialization = errors.New("serialization error")
 
 // DisableGC is a convenient constant for setting the garbage collection
 // interval high enough that it will never run.
@@ -154,7 +154,7 @@ func (mdb *memdbDatastore) ReadWriteTx(
 				defer mdb.Unlock()
 
 				if mdb.activeWriteTxn != nil {
-					err = errSerialization
+					err = ErrSerialization
 					return
 				}
 
@@ -181,7 +181,7 @@ func (mdb *memdbDatastore) ReadWriteTx(
 			}
 
 			// If the error was a serialization error, retry the transaction
-			if errors.Is(err, errSerialization) {
+			if errors.Is(err, ErrSerialization) {
 				mdb.Unlock()
 
 				// If we don't sleep here, we run out of retries instantaneously
diff --git a/internal/datastore/memdb/revisions_test.go b/internal/datastore/memdb/revisions_test.go
index 1fc9784c0e..fc91edbba0 100644
--- a/internal/datastore/memdb/revisions_test.go
+++ b/internal/datastore/memdb/revisions_test.go
@@ -27,5 +27,5 @@ func TestHeadRevision(t *testing.T) {
 }
 
 func (mdb *memdbDatastore) ExampleRetryableError() error {
-	return errSerialization
+	return ErrSerialization
 }
diff --git a/internal/datastore/proxy/observable.go b/internal/datastore/proxy/observable.go
index 5d1ebcb039..7837487a8e 100644
--- a/internal/datastore/proxy/observable.go
+++ b/internal/datastore/proxy/observable.go
@@ -305,7 +305,7 @@ func (rwt *observableRWT) DeleteRelationships(ctx context.Context, filter *v1.Re
 	))
 	defer closer()
 
-	return rwt.delegate.DeleteRelationships(ctx, filter)
+	return rwt.delegate.DeleteRelationships(ctx, filter, options...)
 }
 
 func (rwt *observableRWT) BulkLoad(ctx context.Context, iter datastore.BulkWriteRelationshipSource) (uint64, error) {
diff --git a/internal/datastore/proxy/observable_test.go b/internal/datastore/proxy/observable_test.go
new file mode 100644
index 0000000000..9644c82cdd
--- /dev/null
+++ b/internal/datastore/proxy/observable_test.go
@@ -0,0 +1,28 @@
+package proxy
+
+import (
+	"testing"
+	"time"
+
+	"github.com/authzed/spicedb/internal/datastore/memdb"
+	"github.com/authzed/spicedb/pkg/datastore"
+	"github.com/authzed/spicedb/pkg/datastore/test"
+)
+
+type observableTest struct{}
+
+func (obs observableTest) New(revisionQuantization, _, gcWindow time.Duration, watchBufferLength uint16) (datastore.Datastore, error) {
+	db, err := memdb.NewMemdbDatastore(watchBufferLength, revisionQuantization, gcWindow)
+	if err != nil {
+		return nil, err
+	}
+	return NewObservableDatastoreProxy(db), nil
+}
+
+func TestObservableProxy(t *testing.T) {
+	test.All(t, observableTest{})
+}
+
+func (p *observableProxy) ExampleRetryableError() error {
+	return memdb.ErrSerialization
+}