diff --git a/capnp/lib/capnp.pxd b/capnp/lib/capnp.pxd
index 8cbf3b7..dc0ed4e 100644
--- a/capnp/lib/capnp.pxd
+++ b/capnp/lib/capnp.pxd
@@ -122,5 +122,6 @@ cdef to_python_reader(C_DynamicValue.Reader self, object parent)
 cdef to_python_builder(C_DynamicValue.Builder self, object parent)
 cdef _to_dict(msg, bint verbose, bint ordered)
 cdef _from_list(_DynamicListBuilder msg, list d)
+cdef _from_tuple(_DynamicListBuilder msg, tuple d)
 cdef _setDynamicFieldWithField(DynamicStruct_Builder thisptr, _StructSchemaField field, value, parent)
 cdef _setDynamicFieldStatic(DynamicStruct_Builder thisptr, field, value, parent)
diff --git a/capnp/lib/capnp.pyx b/capnp/lib/capnp.pyx
index 284bd7c..53756ca 100644
--- a/capnp/lib/capnp.pyx
+++ b/capnp/lib/capnp.pyx
@@ -719,6 +719,9 @@ cdef _setDynamicField(_DynamicSetterClasses thisptr, field, value, parent):
     elif value_type is list:
         builder = to_python_builder(thisptr.init(field, len(value)), parent)
         _from_list(builder, value)
+    elif value_type is tuple:
+        builder = to_python_builder(thisptr.init(field, len(value)), parent)
+        _from_tuple(builder, value)
     elif value_type is dict:
         if _DynamicSetterClasses is DynamicStruct_Builder:
             builder = to_python_builder(thisptr.get(field), parent)
@@ -904,6 +907,11 @@ cdef _from_list(_DynamicListBuilder msg, list d):
         msg._set(i, x)
 
 
+cdef _from_tuple(_DynamicListBuilder msg, tuple d):
+    for i, x in enumerate(d):
+        msg._set(i, x)
+
+
 cdef class _DynamicEnum:
     cdef _init(self, capnp.DynamicEnum other, object parent):
         self.thisptr = other