diff --git a/common/boot_control_interface.h b/common/boot_control_interface.h
index 3b61add..321174e 100644
--- a/common/boot_control_interface.h
+++ b/common/boot_control_interface.h
@@ -103,7 +103,7 @@
   // Check if |slot| is marked boot successfully.
   virtual bool IsSlotMarkedSuccessful(Slot slot) const = 0;
 
-  // Return the dynamic partition control interface.
+  // Return the dynamic partition control interface. Never null.
   virtual DynamicPartitionControlInterface* GetDynamicPartitionControl() = 0;
 
   // Return a human-readable slot name used for logging.
diff --git a/common/metrics_reporter_interface.h b/common/metrics_reporter_interface.h
index 08636e3..29d13fa 100644
--- a/common/metrics_reporter_interface.h
+++ b/common/metrics_reporter_interface.h
@@ -23,6 +23,7 @@
 #include <base/time/time.h>
 
 #include "update_engine/common/constants.h"
+#include "update_engine/common/dynamic_partition_control_interface.h"
 #include "update_engine/common/error_code.h"
 #include "update_engine/common/metrics_constants.h"
 
@@ -235,7 +236,8 @@
 
 namespace metrics {
 
-std::unique_ptr<MetricsReporterInterface> CreateMetricsReporter();
+std::unique_ptr<MetricsReporterInterface> CreateMetricsReporter(
+    DynamicPartitionControlInterface* dynamic_partition_control);
 
 }  // namespace metrics
 
diff --git a/common/metrics_reporter_stub.cc b/common/metrics_reporter_stub.cc
index dcb4e8c..96b519b 100644
--- a/common/metrics_reporter_stub.cc
+++ b/common/metrics_reporter_stub.cc
@@ -22,7 +22,8 @@
 
 namespace metrics {
 
-std::unique_ptr<MetricsReporterInterface> CreateMetricsReporter() {
+std::unique_ptr<MetricsReporterInterface> CreateMetricsReporter(
+    DynamicPartitionControlInterface* dynamic_partition_control) {
   return std::make_unique<MetricsReporterStub>();
 }