diff --git a/katakana_runner.rb b/katakana_runner.rb
index cb2e8ae..791b90e 100644
--- a/katakana_runner.rb
+++ b/katakana_runner.rb
@@ -101,7 +101,7 @@ def self.run10
   threads << Thread.start(KatakanaRunner.run8) { |r8| r8 }
   threads << Thread.start(KatakanaRunner.run9) { |r9| r9 }
   threads << Thread.start(KatakanaRunner.run10) { |r10| r10 }
-  threads.each { |thr| thr.join }
+  threads.each { |thr| thr.join.value }
 
 rescue StandardError => e
   puts e.backtrace
diff --git a/romaji_runner.rb b/romaji_runner.rb
index 2a25aa0..76c783a 100644
--- a/romaji_runner.rb
+++ b/romaji_runner.rb
@@ -102,7 +102,7 @@ def self.run10
   threads << Thread.start(RomajiRunner.run8) { |r8| r8 }
   threads << Thread.start(RomajiRunner.run9) { |r9| r9 }
   threads << Thread.start(RomajiRunner.run10) { |r10| r10 }
-  threads.each { |thr| thr.join }
+  threads.each { |thr| thr.join.value }
 
 rescue StandardError => e
   puts e.backtrace