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-rw-r--r--lib/rdoc/class_module.rb3
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/rdoc/class_module.rb b/lib/rdoc/class_module.rb
index 321aaee57d..16b85d7918 100644
--- a/lib/rdoc/class_module.rb
+++ b/lib/rdoc/class_module.rb
@@ -146,10 +146,11 @@ class RDoc::ClassModule < RDoc::Context
def merge class_module
comment = class_module.comment
+
if comment then
document = parse @comment
- comment.parts.concat(document.parts)
+ comment.parts.concat document.parts
@comment = comment
end