diff --git a/scripts/generate.py b/scripts/generate.py
index c158295..3c9252e 100644
--- a/scripts/generate.py
+++ b/scripts/generate.py
@@ -476,7 +476,7 @@ def render_block(content, acc, _class, is_code):
     acc.append('</pre>')
 
 def unindent(content):
-    base_indentation = min([
+    base_indentation = min([0] + [
         len(l) - len(l.lstrip(' '))
         for l in content.split('\n')
         if len(l.strip()) > 0