diff --git a/src/idl_gen_python.cpp b/src/idl_gen_python.cpp
index c342650bb..0aa555755 100644
--- a/src/idl_gen_python.cpp
+++ b/src/idl_gen_python.cpp
@@ -628,7 +628,7 @@ class PythonGenerator : public BaseGenerator {
     code += Indent + "builder.head = builder.head - len(bytes)\n";
     code += Indent + "builder.Bytes[builder.head : builder.head + len(bytes)]";
     code += " = bytes\n";
-    code += Indent + "return builder.EndVector(len(bytes))\n";
+    code += Indent + "return builder.EndVector()\n";
   }
 
   // Get the offset of the end of a table.
diff --git a/tests/MyGame/Example/Monster.py b/tests/MyGame/Example/Monster.py
index f50aa8beb..80840af23 100644
--- a/tests/MyGame/Example/Monster.py
+++ b/tests/MyGame/Example/Monster.py
@@ -785,7 +785,7 @@ def MonsterMakeTestnestedflatbufferVectorFromBytes(builder, bytes):
     builder.StartVector(1, len(bytes), 1)
     builder.head = builder.head - len(bytes)
     builder.Bytes[builder.head : builder.head + len(bytes)] = bytes
-    return builder.EndVector(len(bytes))
+    return builder.EndVector()
 def MonsterAddTestempty(builder, testempty): builder.PrependUOffsetTRelativeSlot(14, flatbuffers.number_types.UOffsetTFlags.py_type(testempty), 0)
 def MonsterAddTestbool(builder, testbool): builder.PrependBoolSlot(15, testbool, 0)
 def MonsterAddTesthashs32Fnv1(builder, testhashs32Fnv1): builder.PrependInt32Slot(16, testhashs32Fnv1, 0)
@@ -840,7 +840,7 @@ def MonsterMakeTestrequirednestedflatbufferVectorFromBytes(builder, bytes):
     builder.StartVector(1, len(bytes), 1)
     builder.head = builder.head - len(bytes)
     builder.Bytes[builder.head : builder.head + len(bytes)] = bytes
-    return builder.EndVector(len(bytes))
+    return builder.EndVector()
 def MonsterEnd(builder): return builder.EndObject()
 
 import MyGame.Example.Ability