diff --git a/FirebasePerformance/CHANGELOG.md b/FirebasePerformance/CHANGELOG.md
index 200944c0e53..092f612d608 100644
--- a/FirebasePerformance/CHANGELOG.md
+++ b/FirebasePerformance/CHANGELOG.md
@@ -1,3 +1,6 @@
+# 10.18.0
+- [fixed] Fix a Xcode 15.1 build warning (#12027).
+
 # 10.17.0
 - [fixed] Fix a second Xcode 15 runtime warning (#11821).
 
diff --git a/FirebasePerformance/Sources/Gauges/CPU/FPRCPUGaugeCollector.m b/FirebasePerformance/Sources/Gauges/CPU/FPRCPUGaugeCollector.m
index 308076305cb..7e3742af0f7 100644
--- a/FirebasePerformance/Sources/Gauges/CPU/FPRCPUGaugeCollector.m
+++ b/FirebasePerformance/Sources/Gauges/CPU/FPRCPUGaugeCollector.m
@@ -45,7 +45,7 @@ @interface FPRCPUGaugeCollector ()
  *
  * @return Instance of FPRCPUGaugeData.
  */
-FPRCPUGaugeData *fprCollectCPUMetric() {
+FPRCPUGaugeData *fprCollectCPUMetric(void) {
   kern_return_t kernelReturnValue;
   mach_msg_type_number_t task_info_count;
   task_info_data_t taskInfo;