diff --git a/lib/party_foul/issue_renderers/base.rb b/lib/party_foul/issue_renderers/base.rb
index 6377269..2dea518 100644
--- a/lib/party_foul/issue_renderers/base.rb
+++ b/lib/party_foul/issue_renderers/base.rb
@@ -57,7 +57,7 @@ def comment
   #
   # @return [String]
   def stack_trace
-    exception.backtrace.map do |line|
+    (exception.backtrace || []).map do |line|
       if from_bundler?(line)
         format_line(line)
       elsif (matches = extract_file_name_and_line_number(line))