diff --git a/test/81-block-nested/expect.err b/test/81-block-nested/expect.err
new file mode 100644
index 0000000..89f3cce
--- /dev/null
+++ b/test/81-block-nested/expect.err
@@ -0,0 +1 @@
+test/81-block-nested/input:14: error: #defblocks cannot be nested
diff --git a/test/81-block-nested/expect.out b/test/81-block-nested/expect.out
new file mode 100644
index 0000000..e69de29
diff --git a/test/81-block-nested/expect.status b/test/81-block-nested/expect.status
new file mode 100644
index 0000000..d00491f
--- /dev/null
+++ b/test/81-block-nested/expect.status
@@ -0,0 +1 @@
+1
diff --git a/test/81-block-nested/input b/test/81-block-nested/input
new file mode 100644
index 0000000..56efd4b
--- /dev/null
+++ b/test/81-block-nested/input
@@ -0,0 +1,18 @@
+#defblock lorem
+Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor
+incididunt ut labore et dolore magna aliqua. Diam sit amet nisl suscipit
+adipiscing bibendum est ultricies. Vitae ultricies leo integer malesuada nunc
+vel risus. Ornare massa eget egestas purus viverra accumsan in nisl
+nisi. Malesuada fames ac turpis egestas. Sit amet consectetur adipiscing
+elit. Elit ut aliquam purus sit amet luctus venenatis. Sed viverra tellus in hac
+habitasse. Sollicitudin aliquam ultrices sagittis orci a scelerisque
+purus. Cursus metus aliquam eleifend mi in nulla posuere sollicitudin. Vel risus
+commodo viverra maecenas accumsan. Posuere lorem ipsum dolor sit amet
+consectetur adipiscing. Malesuada fames ac turpis egestas integer eget aliquet
+nibh. Consectetur adipiscing elit ut aliquam purus. Nulla aliquet porttitor
+lacus luctus accumsan tortor posuere.
+#defblock nested
+block nested in lorem
+#endblock
+#endblock
+#useblock lorem