diff --git a/pydatastructs/graphs/__init__.py b/pydatastructs/graphs/__init__.py
index 21e0a5f35..66b10e74e 100644
--- a/pydatastructs/graphs/__init__.py
+++ b/pydatastructs/graphs/__init__.py
@@ -6,6 +6,9 @@
 )
 __all__.extend(graph.__all__)
 
+from . import _extensions
+
+
 from . import algorithms
 from . import adjacency_list
 from . import adjacency_matrix
diff --git a/pydatastructs/linear_data_structures/__init__.py b/pydatastructs/linear_data_structures/__init__.py
index c6b3341d2..da8420a75 100644
--- a/pydatastructs/linear_data_structures/__init__.py
+++ b/pydatastructs/linear_data_structures/__init__.py
@@ -6,6 +6,8 @@
     algorithms,
 )
 
+from . import _extensions
+
 from .arrays import (
     OneDimensionalArray,
     DynamicOneDimensionalArray,
diff --git a/pydatastructs/miscellaneous_data_structures/__init__.py b/pydatastructs/miscellaneous_data_structures/__init__.py
index 6ed099769..139589774 100644
--- a/pydatastructs/miscellaneous_data_structures/__init__.py
+++ b/pydatastructs/miscellaneous_data_structures/__init__.py
@@ -8,6 +8,8 @@
     sparse_table,
 )
 
+from . import _extensions
+
 from .binomial_trees import (
     BinomialTree
 )
diff --git a/pydatastructs/trees/__init__.py b/pydatastructs/trees/__init__.py
index 892730122..93caafb95 100644
--- a/pydatastructs/trees/__init__.py
+++ b/pydatastructs/trees/__init__.py
@@ -7,6 +7,9 @@
     heaps,
 )
 
+from . import _extensions
+
+
 from .binary_trees import (
     BinaryTree,
     BinarySearchTree,
diff --git a/pydatastructs/utils/__init__.py b/pydatastructs/utils/__init__.py
index c4971be32..8be9964ef 100644
--- a/pydatastructs/utils/__init__.py
+++ b/pydatastructs/utils/__init__.py
@@ -5,6 +5,8 @@
     testing_util,
 )
 
+from . import _extensions
+
 from .misc_util import (
     TreeNode,
     MAryTreeNode,