diff --git a/internal/mongo/common.go b/internal/mongo/common.go
index b47d5a8..15a1f72 100644
--- a/internal/mongo/common.go
+++ b/internal/mongo/common.go
@@ -67,7 +67,10 @@ func (g baseMethodGenerator) bsonFieldReference(fieldReference spec.FieldReferen
 func (g baseMethodGenerator) bsonTagFromField(field code.StructField) (string, error) {
 	bsonTag, ok := field.Tag.Lookup("bson")
 	if !ok {
-		return "", NewBsonTagNotFoundError(field.Name)
+		bsonTag, ok = field.Tag.Lookup("json")
+		if !ok {
+			return "", NewBsonTagNotFoundError(field.Name)
+		}
 	}
 
 	documentKey := strings.Split(bsonTag, ",")[0]