diff --git a/include/MetroidPrime/CActorParameters.hpp b/include/MetroidPrime/CActorParameters.hpp
index dae7758f..0e99b542 100644
--- a/include/MetroidPrime/CActorParameters.hpp
+++ b/include/MetroidPrime/CActorParameters.hpp
@@ -143,6 +143,6 @@ private:
   float x60_fadeOutTime;
   float x64_thermalMag;
 };
-// CHECK_SIZEOF(CActorParameters, 0x68)
+CHECK_SIZEOF(CActorParameters, 0x68)
 
 #endif // _CACTORPARAMETERS