diff --git a/.gitignore b/.gitignore
index 1d6ee9e3614..5d5da135a82 100644
--- a/.gitignore
+++ b/.gitignore
@@ -64,6 +64,12 @@
 /nd/
 /rt/
 /rustllvm/
+/src/libunicode/DerivedCoreProperties.txt
+/src/libunicode/EastAsianWidth.txt
+/src/libunicode/HangulSyllableType.txt
+/src/libunicode/PropList.txt
+/src/libunicode/Scripts.txt
+/src/libunicode/UnicodeData.txt
 /stage0/
 /stage1/
 /stage2/