diff --git a/src/diffusers/modular_pipelines/__init__.py b/src/diffusers/modular_pipelines/__init__.py
index e0f2e31388..ceee942b3d 100644
--- a/src/diffusers/modular_pipelines/__init__.py
+++ b/src/diffusers/modular_pipelines/__init__.py
@@ -25,7 +25,6 @@ else:
     _import_structure["modular_pipeline"] = [
         "ModularPipelineBlocks",
         "ModularPipeline",
-        "PipelineBlock",
         "AutoPipelineBlocks",
         "SequentialPipelineBlocks",
         "LoopSequentialPipelineBlocks",
@@ -59,7 +58,6 @@ if TYPE_CHECKING or DIFFUSERS_SLOW_IMPORT:
             LoopSequentialPipelineBlocks,
             ModularPipeline,
             ModularPipelineBlocks,
-            PipelineBlock,
             PipelineState,
             SequentialPipelineBlocks,
         )