diff --git a/.gitignore b/.gitignore
index c9f4e91..76880e0 100644
--- a/.gitignore
+++ b/.gitignore
@@ -16,6 +16,9 @@ xy
 # Generated when testing
 nul
 
+# Cygwin problem
+.chsrc_measure_tmp.sh
+
 # Texinfo
 chsrc.aux
 chsrc.log