diff --git a/ChangeLog b/ChangeLog
index 32913e76f2..6a3cf5e222 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Thu Feb  4 14:42:29 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
+
+	* common.mk: Added Unicode data file SpecialCasing.txt to be additionally
+	  downloaded (with Kimihito Matsui)
+
 Thu Feb  4 12:39:08 2016  joker1007  <kakyoin.hierophant@gmail.com>
 
 	* cgi/escape/escape.c: Optimize CGI.escape performance by C ext
diff --git a/common.mk b/common.mk
index eb01c54b84..c7653468db 100644
--- a/common.mk
+++ b/common.mk
@@ -1020,7 +1020,8 @@ UNICODE_SRC_DATA_DIR = $(srcdir)/$(UNICODE_DATA_DIR)
 UNICODE_FILES = $(UNICODE_SRC_DATA_DIR)/UnicodeData.txt \
 		$(UNICODE_SRC_DATA_DIR)/CompositionExclusions.txt \
 		$(UNICODE_SRC_DATA_DIR)/NormalizationTest.txt \
-		$(UNICODE_SRC_DATA_DIR)/CaseFolding.txt
+		$(UNICODE_SRC_DATA_DIR)/CaseFolding.txt \
+		$(UNICODE_SRC_DATA_DIR)/SpecialCasing.txt
 
 update-unicode: $(UNICODE_FILES)