diff --git a/dissect/cstruct/types/enum.py b/dissect/cstruct/types/enum.py
index c67280b..1d3b2e6 100644
--- a/dissect/cstruct/types/enum.py
+++ b/dissect/cstruct/types/enum.py
@@ -39,6 +39,7 @@ def __call__(
         enum_cls.cs = cs
         enum_cls.type = type_
         enum_cls.size = type_.size
+        enum_cls.dynamic = type_.dynamic
         enum_cls.alignment = type_.alignment
 
         _fix_alias_members(enum_cls)
diff --git a/tests/test_basic.py b/tests/test_basic.py
index b594f0a..b318e39 100644
--- a/tests/test_basic.py
+++ b/tests/test_basic.py
@@ -505,3 +505,20 @@ def test_size_and_aligment(cs: cstruct):
     test = cs._make_packed_type("test", "B", int, alignment=8)
     assert test.size == 1
     assert test.alignment == 8
+
+
+def test_dynamic_substruct_size(cs: cstruct):
+    cdef = """
+    struct {
+        int32 len;
+        char str[len];
+    } sub;
+
+    struct {
+        sub data[1];
+    } test;
+    """
+    cs.load(cdef)
+
+    assert cs.sub.dynamic
+    assert cs.test.dynamic
diff --git a/tests/test_parser.py b/tests/test_parser.py
index 193980b..232ba26 100644
--- a/tests/test_parser.py
+++ b/tests/test_parser.py
@@ -1,6 +1,5 @@
 from unittest.mock import Mock
 
-from dissect.cstruct import cstruct
 from dissect.cstruct.parser import TokenParser
 
 
@@ -24,20 +23,3 @@ def test_preserve_comment_newlines():
 
     mock_token.match.start.return_value = data.index("#define multi_anchor")
     assert TokenParser._lineno(mock_token) == 9
-
-
-def test_dynamic_substruct_size(cs: cstruct):
-    cdef = """
-    struct {
-        int32 len;
-        char str[len];
-    } sub;
-
-    struct {
-        sub data[1];
-    } test;
-    """
-    cs.load(cdef)
-
-    assert cs.sub.dynamic
-    assert cs.test.dynamic