diff --git a/Sources/Plasma/FeatureLib/pfMetalPipeline/plMetalDevice.h b/Sources/Plasma/FeatureLib/pfMetalPipeline/plMetalDevice.h
index f84abfc405..4aec911ed0 100644
--- a/Sources/Plasma/FeatureLib/pfMetalPipeline/plMetalDevice.h
+++ b/Sources/Plasma/FeatureLib/pfMetalPipeline/plMetalDevice.h
@@ -281,8 +281,8 @@ class plMetalDevice
     // MARK:  - Device capabilities
 private:
     /// Returns true if the device supports tile memory features such as directly writable render buffers.
-    inline BOOL SupportsTileMemory() const { return fSupportsTileMemory; }
-    BOOL fSupportsTileMemory;
+    inline bool SupportsTileMemory() const { return fSupportsTileMemory; }
+    bool fSupportsTileMemory;
 };
 
 #endif