diff --git a/benchmark/src/main/java/com/linecorp/decaton/benchmark/Main.java b/benchmark/src/main/java/com/linecorp/decaton/benchmark/Main.java
index db4d8d41..136eec87 100644
--- a/benchmark/src/main/java/com/linecorp/decaton/benchmark/Main.java
+++ b/benchmark/src/main/java/com/linecorp/decaton/benchmark/Main.java
@@ -96,8 +96,8 @@ public final class Main implements Callable<Integer> {
             defaultValue = "text")
     private String resultFormat;
 
-    @Option(names = "--file", description = "Result file to write output to. If not specified, output to stdout")
-    private Path resultFile;
+    @Option(names = "--output", description = "Result file to write output to. If not specified, output to stdout")
+    private Path resultOutput;
 
     @Option(names = "--file-name-only",
             description = "Trim file paths in result from its path to filename only")
@@ -171,8 +171,8 @@ public Integer call() throws Exception {
         @SuppressWarnings("OptionalGetWithoutIsPresent")
         BenchmarkResult sum = results.stream().reduce(BenchmarkResult::plus).get();
         BenchmarkResult result = sum.div(results.size());
-        if (resultFile != null) {
-            try (FileOutputStream fos = new FileOutputStream(resultFile.toFile())) {
+        if (resultOutput != null) {
+            try (FileOutputStream fos = new FileOutputStream(resultOutput.toFile())) {
                 resultFormat.print(config, fos, result);
             }
         } else {
diff --git a/cb/run-bm.sh b/cb/run-bm.sh
index 9a6d0b1c..7053f08b 100755
--- a/cb/run-bm.sh
+++ b/cb/run-bm.sh
@@ -27,7 +27,7 @@ function run_with_opts() {
         --file-name-only \
         --warmup 10000000 \
         --param=decaton.max.pending.records=10000 \
-        --file=$tmp \
+        --output=$tmp \
         "$@"
     mv $tmp $out_dir/$name-benchmark.json
 }