diff --git a/src/core/hle/service/ptm/ptm.h b/src/core/hle/service/ptm/ptm.h
index 3bb8208b1..f8b65ea60 100644
--- a/src/core/hle/service/ptm/ptm.h
+++ b/src/core/hle/service/ptm/ptm.h
@@ -56,10 +56,10 @@ u32 GetShellState();
 ChargeLevels GetBatteryLevel();
 
 /**
-* Checks the physical version of the 3Ds
-* @returns The physical version of the 3Ds
+* Checks the physical version of the 3DS
+* @returns 0 for Old 3DS, 1 for New 3DS 
 */
-u8 CheckNew3Ds(void);
+u8 CheckNew3DS();
 
 /// Initialize the PTM service
 void Init();