diff --git a/.gitignore b/.gitignore
index 6baeed8f5f4f2..8efb59d89ae1d 100644
--- a/.gitignore
+++ b/.gitignore
@@ -128,6 +128,7 @@ tsc/testdata/baselines/tmp
 tools/custom-gcl
 tools/custom-gcl.exe
 tools/custom-gcl.hash
+tools/custom-gcl.exe.hash
 
 # Keep tracked text assets that overlap broad output patterns
 !tsc/testdata/baselines/reference/**/*.txt