diff --git a/go/nix/nixstore/remotestore.go b/go/nix/nixstore/remotestore.go
index 04734c316d..250f489ca9 100644
--- a/go/nix/nixstore/remotestore.go
+++ b/go/nix/nixstore/remotestore.go
@@ -62,6 +62,9 @@ func (d *Daemon) NARInfo(storePath string) (*narinfo.NarInfo, error) {
 		return nil, fmt.Errorf("reading deriver: %w", err)
 	}
 	ni.Deriver = path.Base(ni.Deriver)
+	if ni.Deriver == "." {
+		ni.Deriver = ""
+	}
 
 	hashStr, err := d.r.ReadString()
 	if err != nil {
diff --git a/go/nix/nixstore/sqlitestore.go b/go/nix/nixstore/sqlitestore.go
index e605824e68..3e409df1d3 100644
--- a/go/nix/nixstore/sqlitestore.go
+++ b/go/nix/nixstore/sqlitestore.go
@@ -64,6 +64,9 @@ WHERE 1=1
 	if deriverStr != nil {
 		ni.Deriver = path.Base(*deriverStr)
 	}
+	if ni.Deriver == "." {
+		ni.Deriver = ""
+	}
 
 	if sigsStr != nil {
 		sigsBits := strings.Fields(*sigsStr)