diff --git a/CHANGELOG.md b/CHANGELOG.md
index 45c090c0..118d209b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -32,6 +32,9 @@ Dropping a requirement of a major version of a dependency is a new contract.
   - `jfr` and `flamegraph` for convenience
   - `startParams` and `stopParams` for extensibility
 
+### Deprecated
+- Deprecate `AsyncProfiler.Builder.extraParams` in favor of `startParams` due to ambiguity with `stopParams`.
+
 [JPERF-1390]: https://ecosystem.atlassian.net/browse/JPERF-1390
 
 ## [4.27.0] - 2023-10-09
diff --git a/src/main/kotlin/com/atlassian/performance/tools/infrastructure/api/profiler/AsyncProfiler.kt b/src/main/kotlin/com/atlassian/performance/tools/infrastructure/api/profiler/AsyncProfiler.kt
index 54a77f70..262f179f 100644
--- a/src/main/kotlin/com/atlassian/performance/tools/infrastructure/api/profiler/AsyncProfiler.kt
+++ b/src/main/kotlin/com/atlassian/performance/tools/infrastructure/api/profiler/AsyncProfiler.kt
@@ -103,8 +103,8 @@ class AsyncProfiler private constructor(
             this.startParams.addAll(startParams)
         }
 
-        fun stopParams(vararg extraParams: String) = apply {
-            this.stopParams.addAll(extraParams)
+        fun stopParams(vararg stopParams: String) = apply {
+            this.stopParams.addAll(stopParams)
         }
 
         fun build(): Profiler {
diff --git a/src/test/kotlin/com/atlassian/performance/tools/infrastructure/api/profiler/AsyncProfilerIT.kt b/src/test/kotlin/com/atlassian/performance/tools/infrastructure/api/profiler/AsyncProfilerIT.kt
index d08447c1..39e8d24c 100644
--- a/src/test/kotlin/com/atlassian/performance/tools/infrastructure/api/profiler/AsyncProfilerIT.kt
+++ b/src/test/kotlin/com/atlassian/performance/tools/infrastructure/api/profiler/AsyncProfilerIT.kt
@@ -73,7 +73,7 @@ class AsyncProfilerIT {
 
                 // then
                 val profilerResult = RemotePath(sshClient.host, process.getResultPath())
-                    .download(createTempFile("profiler-result", ".svg"))
+                    .download(createTempFile("profiler-result", ".tmp"))
                 resultAssert(profilerResult)
             }
         }