diff --git a/find-regressions.sh b/find-regressions.sh
index 34ee5a99..067c88bf 100755
--- a/find-regressions.sh
+++ b/find-regressions.sh
@@ -21,14 +21,16 @@
 
 cd find-regressions/current
 elm make --optimize ../src/ParseMain.elm --output elm.js > /dev/null
-sed -i 's/$author$project$ParseMain$timeStart(version)/globalThis.performance.now()/' elm.js
-sed -i 's/$author$project$ParseMain$timeEnd(version)/globalThis.measurements[version].push(globalThis.performance.now() - start)/' elm.js
+sed -e 's/$author$project$ParseMain$timeStart(version)/globalThis.performance.now()/' \
+    -e 's/$author$project$ParseMain$timeEnd(version)/globalThis.measurements[version].push(globalThis.performance.now() - start)/' \
+    -i elm.js
 
 cd ../..
 cd find-regressions/published
 elm make --optimize ../src/ParseMain.elm --output elm.js > /dev/null
-sed -i 's/$author$project$ParseMain$timeStart(version)/globalThis.performance.now()/' elm.js
-sed -i 's/$author$project$ParseMain$timeEnd(version)/globalThis.measurements[version].push(globalThis.performance.now() - start)/' elm.js
+sed -e 's/$author$project$ParseMain$timeStart(version)/globalThis.performance.now()/' \
+    -e 's/$author$project$ParseMain$timeEnd(version)/globalThis.measurements[version].push(globalThis.performance.now() - start)/' \
+    -i elm.js
 
 cd ../..
 node find-regressions $@
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