diff --git a/formats_err/expr_sizeof_cyclic_dependency.ksy b/formats_err/expr_sizeof_cyclic_dependency.ksy
new file mode 100644
index 00000000..b10202bb
--- /dev/null
+++ b/formats_err/expr_sizeof_cyclic_dependency.ksy
@@ -0,0 +1,10 @@
+# expr_sizeof_cyclic_dependency.ksy: /seq/0/if:
+# 	error: unable to derive sizeof for type `expr_sizeof_cyclic_dependency`: dynamic sized type
+#
+meta:
+  id: expr_sizeof_cyclic_dependency
+  -gh-issue: https://github.com/kaitai-io/kaitai_struct/issues/927
+seq:
+  - id: value
+    size: 2
+    if: _sizeof == 1