1 files changed, 2 insertions, 1 deletions
diff --git a/common.mk b/common.mk
index 6f095b08a8..b66b1377c6 100644
--- a/common.mk
+++ b/common.mk
@@ -1006,7 +1006,8 @@ extract-gems: PHONY
 
 UNICODE_FILES = $(srcdir)/enc/unicode/data/$(UNICODE_VERSION)/UnicodeData.txt \
 		$(srcdir)/enc/unicode/data/$(UNICODE_VERSION)/CompositionExclusions.txt \
-		$(srcdir)/enc/unicode/data/$(UNICODE_VERSION)/NormalizationTest.txt
+		$(srcdir)/enc/unicode/data/$(UNICODE_VERSION)/NormalizationTest.txt \
+		$(srcdir)/enc/unicode/data/$(UNICODE_VERSION)/CaseFolding.txt
 
 UNICODE_FILES_DEPS = $(srcdir)/.unicode-$(UNICODE_VERSION).time