diff --git a/ci/measure-perf-delta.sh b/ci/measure-perf-delta.sh
index b147e7d15b15a76b35afc8b8b4c3297915596ed2..5e7544495e68f054638cf677fe4cc3e9f298eda4 100644
--- a/ci/measure-perf-delta.sh
+++ b/ci/measure-perf-delta.sh
@@ -43,7 +43,6 @@ echo '```' >>"$OUT"
 
 $HOME/local/bin/poop \
   "build-base/stage3/bin/zig build-exe test/standalone/hello_world/hello.zig" \
-  "build-new/stage3/bin/zig build-exe test/standalone/hello_world/hello.zig" \
-  >> build-new/perf.txt
+  "build-new/stage3/bin/zig build-exe test/standalone/hello_world/hello.zig" >>"$OUT"
 
 echo '```' >>"$OUT"