diff --git a/src/drivers/px4flow/px4flow.cpp b/src/drivers/px4flow/px4flow.cpp
index db0f45ec1f..134ce6a52b 100644
--- a/src/drivers/px4flow/px4flow.cpp
+++ b/src/drivers/px4flow/px4flow.cpp
@@ -216,6 +216,10 @@ PX4FLOW::~PX4FLOW()
 	if (_reports != nullptr) {
 		delete _reports;
 	}
+
+	perf_free(_sample_perf);
+	perf_free(_comms_errors);
+	perf_free(_buffer_overflows);
 }
 
 int