diff --git a/src/core/hle/service/apm/controller.cpp b/src/core/hle/service/apm/controller.cpp
index 073d0f6fa3..d9e8d247da 100644
--- a/src/core/hle/service/apm/controller.cpp
+++ b/src/core/hle/service/apm/controller.cpp
@@ -48,7 +48,7 @@ void Controller::SetFromCpuBoostMode(CpuBoostMode mode) {
                                 BOOST_MODE_TO_CONFIG_MAP.at(static_cast<u32>(mode)));
 }
 
-PerformanceMode Controller::GetCurrentPerformanceMode() {
+PerformanceMode Controller::GetCurrentPerformanceMode() const {
     return Settings::values.use_docked_mode ? PerformanceMode::Docked : PerformanceMode::Handheld;
 }
 
diff --git a/src/core/hle/service/apm/controller.h b/src/core/hle/service/apm/controller.h
index 454caa6ebf..af0c4cd342 100644
--- a/src/core/hle/service/apm/controller.h
+++ b/src/core/hle/service/apm/controller.h
@@ -56,7 +56,7 @@ public:
     void SetPerformanceConfiguration(PerformanceMode mode, PerformanceConfiguration config);
     void SetFromCpuBoostMode(CpuBoostMode mode);
 
-    PerformanceMode GetCurrentPerformanceMode();
+    PerformanceMode GetCurrentPerformanceMode() const;
     PerformanceConfiguration GetCurrentPerformanceConfiguration(PerformanceMode mode);
 
 private: