diff --git a/src/titiler/mosaic/titiler/mosaic/errors.py b/src/titiler/mosaic/titiler/mosaic/errors.py
index 12cbc28e0..284785be8 100644
--- a/src/titiler/mosaic/titiler/mosaic/errors.py
+++ b/src/titiler/mosaic/titiler/mosaic/errors.py
@@ -11,8 +11,8 @@
 
 MOSAIC_STATUS_CODES = {
     MosaicAuthError: status.HTTP_401_UNAUTHORIZED,
-    EmptyMosaicError: status.HTTP_404_NOT_FOUND,
+    EmptyMosaicError: status.HTTP_204_NO_CONTENT,
     MosaicNotFoundError: status.HTTP_404_NOT_FOUND,
-    NoAssetFoundError: status.HTTP_404_NOT_FOUND,
+    NoAssetFoundError: status.HTTP_204_NO_CONTENT,
     MosaicError: status.HTTP_424_FAILED_DEPENDENCY,
 }