diff --git a/.gitattributes b/.gitattributes
index 518d66acbbb..f7c24042e7a 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -152,7 +152,6 @@ icu4c/source/test/perf/collperf/collperf.vcxproj -text
 icu4c/source/test/perf/collperf/collperf.vcxproj.filters -text
 icu4c/source/test/perf/convperf/convperf.vcxproj -text
 icu4c/source/test/perf/convperf/convperf.vcxproj.filters -text
-icu4c/source/test/perf/howExpensiveIs/Makefile.in -text
 icu4c/source/test/perf/icuperf2report.xsl -text
 icu4c/source/test/perf/normperf/normperf.vcxproj -text
 icu4c/source/test/perf/normperf/normperf.vcxproj.filters -text