diff --git a/nx_arangodb/classes/digraph.py b/nx_arangodb/classes/digraph.py
index cad6be4..f1b7ab6 100644
--- a/nx_arangodb/classes/digraph.py
+++ b/nx_arangodb/classes/digraph.py
@@ -125,6 +125,12 @@ class DiGraph(Graph, nx.DiGraph):
         whenever possible. NOTE: This feature is experimental and may not work
         as expected.
 
+    overwrite_graph : bool (optional, default: False)
+        Whether to truncate the graph collections when the graph is loaded from
+        the database. If set to True, the graph collections will be truncated
+        before loading the graph data. NOTE: This parameter only applies if the
+        graph already exists in the database.
+
     args: positional arguments for nx.Graph
         Additional arguments passed to nx.Graph.
 
diff --git a/nx_arangodb/classes/graph.py b/nx_arangodb/classes/graph.py
index b989348..28641b8 100644
--- a/nx_arangodb/classes/graph.py
+++ b/nx_arangodb/classes/graph.py
@@ -159,6 +159,12 @@ class Graph(nx.Graph):
         whenever possible. NOTE: This feature is experimental and may not work
         as expected.
 
+    overwrite_graph : bool (optional, default: False)
+        Whether to truncate the graph collections when the graph is loaded from
+        the database. If set to True, the graph collections will be truncated
+        before loading the graph data. NOTE: This parameter only applies if the
+        graph already exists in the database.
+
     args: positional arguments for nx.Graph
         Additional arguments passed to nx.Graph.
 
diff --git a/nx_arangodb/classes/multidigraph.py b/nx_arangodb/classes/multidigraph.py
index 4a7be42..451b501 100644
--- a/nx_arangodb/classes/multidigraph.py
+++ b/nx_arangodb/classes/multidigraph.py
@@ -135,6 +135,12 @@ class MultiDiGraph(MultiGraph, DiGraph, nx.MultiDiGraph):
         whenever possible. NOTE: This feature is experimental and may not work
         as expected.
 
+    overwrite_graph : bool (optional, default: False)
+        Whether to truncate the graph collections when the graph is loaded from
+        the database. If set to True, the graph collections will be truncated
+        before loading the graph data. NOTE: This parameter only applies if the
+        graph already exists in the database.
+
     args: positional arguments for nx.Graph
         Additional arguments passed to nx.Graph.
 
diff --git a/nx_arangodb/classes/multigraph.py b/nx_arangodb/classes/multigraph.py
index 84c374d..0ce983e 100644
--- a/nx_arangodb/classes/multigraph.py
+++ b/nx_arangodb/classes/multigraph.py
@@ -136,6 +136,12 @@ class MultiGraph(Graph, nx.MultiGraph):
         whenever possible. NOTE: This feature is experimental and may not work
         as expected.
 
+    overwrite_graph : bool (optional, default: False)
+        Whether to truncate the graph collections when the graph is loaded from
+        the database. If set to True, the graph collections will be truncated
+        before loading the graph data. NOTE: This parameter only applies if the
+        graph already exists in the database.
+
     args: positional arguments for nx.Graph
         Additional arguments passed to nx.Graph.