diff --git a/src/diffusers/__init__.py b/src/diffusers/__init__.py
index 8c4ae36c5654..121fcb4ed24f 100644
--- a/src/diffusers/__init__.py
+++ b/src/diffusers/__init__.py
@@ -692,6 +692,7 @@
 
 if TYPE_CHECKING or DIFFUSERS_SLOW_IMPORT:
     from .configuration_utils import ConfigMixin
+    from .quantizers import PipelineQuantizationConfig
 
     try:
         if not is_bitsandbytes_available():